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31241402412 = 223112310290317
BaseRepresentation
bin11101000110001000…
…011111100000101100
32222122021012200100020
4131012020133200230
51002440244334122
622204015402140
72154122352603
oct350610374054
988567180306
1031241402412
1112281a59040
12607a823350
132c3b62453c
141725274a3a
15c2cae1c5c
hex74621f82c

31241402412 has 48 divisors (see below), whose sum is σ = 82981124352. Its totient is φ = 9055478080.

The previous prime is 31241402407. The next prime is 31241402443. The reversal of 31241402412 is 21420414213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5142123 + ... + 5148194.

It is an arithmetic number, because the mean of its divisors is an integer number (1728773424).

Almost surely, 231241402412 is an apocalyptic number.

It is an amenable number.

31241402412 is an abundant number, since it is smaller than the sum of its proper divisors (51739721940).

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

31241402412 is a wasteful number, since it uses less digits than its factorization.

31241402412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290358 (or 10290356 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31241402412 its reverse (21420414213), we get a palindrome (52661816625).

The spelling of 31241402412 in words is "thirty-one billion, two hundred forty-one million, four hundred two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 23 33 44 46 66 69 92 132 138 253 276 506 759 1012 1518 3036 10290317 20580634 30870951 41161268 61741902 113193487 123483804 226386974 236677291 339580461 452773948 473354582 679160922 710031873 946709164 1358321844 1420063746 2603450201 2840127492 5206900402 7810350603 10413800804 15620701206 31241402412