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31948816996432 = 2471152492475139
BaseRepresentation
bin1110100001110101010011…
…11000110101100001010000
311012010021110222200122000101
413100322221320311201100
513141422134122341212
6151541030042502144
76505140316502440
oct720725170654120
9135107428618011
1031948816996432
11a1a8465321796
1236bba8a204954
1314a99b6b1069b
147c648c362120
153a60de632157
hex1d0ea9e35850

31948816996432 has 40 divisors (see below), whose sum is σ = 70744451480000. Its totient is φ = 13692225802752.

The previous prime is 31948816996409. The next prime is 31948816996433. The reversal of 31948816996432 is 23469961884913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31948816996433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11670319 + ... + 14145457.

It is an arithmetic number, because the mean of its divisors is an integer number (1768611287000).

Almost surely, 231948816996432 is an apocalyptic number.

It is an amenable number.

31948816996432 is an abundant number, since it is smaller than the sum of its proper divisors (38795634483568).

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

31948816996432 is a wasteful number, since it uses less digits than its factorization.

31948816996432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590403 (or 2590397 counting only the distinct ones).

The product of its digits is 483729408, while the sum is 73.

The spelling of 31948816996432 in words is "thirty-one trillion, nine hundred forty-eight billion, eight hundred sixteen million, nine hundred ninety-six thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 115249 230498 460996 806743 921992 1613486 1843984 2475139 3226972 4950278 6453944 9900556 12907888 17325973 19801112 34651946 39602224 69303892 138607784 277215568 285257294611 570514589222 1141029178444 1996801062277 2282058356888 3993602124554 4564116713776 7987204249108 15974408498216 31948816996432