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420312002310 = 232517225164381
BaseRepresentation
bin1100001110111001000…
…11000010111100000110
31111011220021011222221200
412013130203002330012
523341244333033220
6521031052523330
742236503033434
oct6073443027406
91434807158850
10420312002310
11152287193372
1269561780546
1330834856b15
14164b3aa3d54
15adeec44890
hex61dc8c2f06

420312002310 has 144 divisors (see below), whose sum is σ = 1165518677232. Its totient is φ = 105068160000.

The previous prime is 420312002281. The next prime is 420312002311. The reversal of 420312002310 is 13200213024.

420312002310 is a `hidden beast` number, since 42 + 0 + 312 + 0 + 0 + 2 + 310 = 666.

It is a super-2 number, since 2×4203120023102 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420312002311) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6496320 + ... + 6560700.

It is an arithmetic number, because the mean of its divisors is an integer number (8093879703).

Almost surely, 2420312002310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420312002310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582759338616).

420312002310 is an abundant number, since it is smaller than the sum of its proper divisors (745206674922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420312002310 is a wasteful number, since it uses less digits than its factorization.

420312002310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64679 (or 64659 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 420312002310 its reverse (13200213024), we get a palindrome (433512215334).

The spelling of 420312002310 in words is "four hundred twenty billion, three hundred twelve million, two thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 251 255 289 306 502 510 578 753 765 867 1255 1445 1506 1530 1734 2259 2510 2601 2890 3765 4267 4335 4518 5202 7530 8534 8670 11295 12801 13005 21335 22590 25602 26010 38403 42670 64005 64381 72539 76806 128010 128762 145078 192015 193143 217617 321905 362695 384030 386286 435234 579429 643810 652851 725390 965715 1088085 1094477 1158858 1305702 1931430 2176170 2188954 2897145 3264255 3283431 5472385 5794290 6528510 6566862 9850293 10944770 16159631 16417155 18606109 19700586 32319262 32834310 37212218 48478893 49251465 55818327 80798155 93030545 96957786 98502930 111636654 145436679 161596310 167454981 186061090 242394465 274713727 279091635 290873358 334909962 484788930 549427454 558183270 727183395 824141181 837274905 1373568635 1454366790 1648282362 1674549810 2472423543 2747137270 4120705905 4670133359 4944847086 8241411810 9340266718 12362117715 14010400077 23350666795 24724235430 28020800154 42031200231 46701333590 70052000385 84062400462 140104000770 210156001155 420312002310