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320020130310 = 235313371021091
BaseRepresentation
bin1001010100000101010…
…11111010101000000110
31010121000202100000120220
410222002223322220012
520220400123132220
6403003142005210
732056253140236
oct4520253725006
91117022300526
10320020130310
111137a1025541
1252032116806
132424073406a
14116bbd87cc6
1584d00a4540
hex4a82afaa06

320020130310 has 64 divisors (see below), whose sum is σ = 795177437184. Its totient is φ = 82340697600.

The previous prime is 320020130291. The next prime is 320020130317. The reversal of 320020130310 is 13031020023.

It is a super-2 number, since 2×3200201303102 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320020130310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320020130317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197136 + ... + 823955.

It is an arithmetic number, because the mean of its divisors is an integer number (12424647456).

Almost surely, 2320020130310 is an apocalyptic number.

320020130310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320020130310 is an abundant number, since it is smaller than the sum of its proper divisors (475157306874).

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

320020130310 is a wasteful number, since it uses less digits than its factorization.

320020130310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021469.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 320020130310 its reverse (13031020023), we get a palindrome (333051150333).

The spelling of 320020130310 in words is "three hundred twenty billion, twenty million, one hundred thirty thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 337 465 674 930 1011 1685 2022 3370 5055 10110 10447 20894 31341 52235 62682 104470 156705 313410 1021091 2042182 3063273 5105455 6126546 10210910 15316365 30632730 31653821 63307642 94961463 158269105 189922926 316538210 344107667 474807315 688215334 949614630 1032323001 1720538335 2064646002 3441076670 5161615005 10323230010 10667337677 21334675354 32002013031 53336688385 64004026062 106673376770 160010065155 320020130310