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264404253131320 = 235194920071168977
BaseRepresentation
bin111100000111100101101001…
…100101011100001000111000
31021200011210121000022002210211
4330013211221211130020320
5234123444402300200240
62334201345333320504
7106456401606350221
oct7407455145341070
91250153530262724
10264404253131320
117727a239984985
12257a3395496134
13b46c2a2463583
14494133c666248
152087b64abcbea
hexf0796995c238

264404253131320 has 64 divisors (see below), whose sum is σ = 595247986008000. Its totient is φ = 105701544437760.

The previous prime is 264404253131309. The next prime is 264404253131323. The reversal of 264404253131320 is 23131352404462.

It is a super-2 number, since 2×2644042531313202 (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264404253131323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564650672 + ... + 1564819648.

It is an arithmetic number, because the mean of its divisors is an integer number (9300749781375).

Almost surely, 2264404253131320 is an apocalyptic number.

264404253131320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264404253131320 is an abundant number, since it is smaller than the sum of its proper divisors (330843732876680).

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

264404253131320 is a wasteful number, since it uses less digits than its factorization.

264404253131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191008 (or 191004 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 264404253131320 in words is "two hundred sixty-four trillion, four hundred four billion, two hundred fifty-three million, one hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 1949 3898 7796 9745 15592 19490 20071 38980 40142 77960 80284 100355 160568 168977 200710 337954 401420 675908 802840 844885 1351816 1689770 3379540 6759080 39118379 78236758 156473516 195591895 312947032 329336173 391183790 658672346 782367580 1317344692 1564735160 1646680865 2634689384 3293361730 3391537367 6586723460 6783074734 13173446920 13566149468 16957686835 27132298936 33915373670 67830747340 135661494680 6610106328283 13220212656566 26440425313132 33050531641415 52880850626264 66101063282830 132202126565660 264404253131320