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316134561620 = 225232983285521
BaseRepresentation
bin1001001100110110001…
…01101001011101010100
31010012222221221200101102
410212123011221131110
520134420421432440
6401121420445232
731561052302523
oct4463305513524
91105887850342
10316134561620
1111208779a249
12513289a9818
1323a717399a7
141142dd004ba
158353dd4b15
hex499b169754

316134561620 has 96 divisors (see below), whose sum is σ = 725271563520. Its totient is φ = 115377489920.

The previous prime is 316134561619. The next prime is 316134561623. The reversal of 316134561620 is 26165431613.

It is a super-2 number, since 2×3161345616202 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316134561623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 964460 + ... + 1249980.

It is an arithmetic number, because the mean of its divisors is an integer number (7554912120).

Almost surely, 2316134561620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316134561620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362635781760).

316134561620 is an abundant number, since it is smaller than the sum of its proper divisors (409137001900).

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

316134561620 is a wasteful number, since it uses less digits than its factorization.

316134561620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285665 (or 285663 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 316134561620 in words is "three hundred sixteen billion, one hundred thirty-four million, five hundred sixty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 23 29 46 58 83 92 115 116 145 166 230 290 332 415 460 580 667 830 1334 1660 1909 2407 2668 3335 3818 4814 6670 7636 9545 9628 12035 13340 19090 24070 38180 48140 55361 110722 221444 276805 285521 553610 571042 1107220 1142084 1427605 2855210 5710420 6566983 8280109 13133966 16560218 23698243 26267932 32834915 33120436 41400545 47396486 65669830 82801090 94792972 118491215 131339660 165602180 190442507 236982430 380885014 473964860 545059589 687249047 761770028 952212535 1090119178 1374498094 1904425070 2180238356 2725297945 2748996188 3436245235 3808850140 5450595890 6872490470 10901191780 13744980940 15806728081 31613456162 63226912324 79033640405 158067280810 316134561620