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31241143304 = 23717322910163
BaseRepresentation
bin11101000110000111…
…100000010000001000
32222122020201111220122
4131012013200100020
51002440213041204
622204010042412
72154120223310
oct350607402010
988566644818
1031241143304
11122818a13a8
12607a719408
132c3b563617
141725208440
15c2ca900be
hex7461e0408

31241143304 has 64 divisors (see below), whose sum is σ = 70912195200. Its totient is φ = 12596327424.

The previous prime is 31241143303. The next prime is 31241143379. The reversal of 31241143304 is 40334114213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31241143303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3068927 + ... + 3079089.

It is an arithmetic number, because the mean of its divisors is an integer number (1108003050).

Almost surely, 231241143304 is an apocalyptic number.

31241143304 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31241143304 is an abundant number, since it is smaller than the sum of its proper divisors (39671051896).

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

31241143304 is a wasteful number, since it uses less digits than its factorization.

31241143304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13422 (or 13418 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31241143304 its reverse (40334114213), we get a palindrome (71575257517).

The spelling of 31241143304 in words is "thirty-one billion, two hundred forty-one million, one hundred forty-three thousand, three hundred four".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 238 476 952 3229 6458 10163 12916 20326 22603 25832 40652 45206 54893 71141 81304 90412 109786 142282 172771 180824 219572 284564 345542 384251 439144 569128 691084 768502 1209397 1382168 1537004 2418794 3074008 4837588 9675176 32816327 65632654 131265308 229714289 262530616 459428578 557877559 918857156 1115755118 1837714312 2231510236 3905142913 4463020472 7810285826 15620571652 31241143304