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31325954088 = 233111331294439
BaseRepresentation
bin11101001011001011…
…000010000000101000
32222212011022100102210
4131023023002000220
51003123421012323
622220235525120
72156200134132
oct351313020050
988764270383
1031325954088
1112315758a60
1260a2bb97a0
132c52cb9610
1417325a4052
15c35244293
hex74b2c2028

31325954088 has 128 divisors (see below), whose sum is σ = 94974566400. Its totient is φ = 8479814400.

The previous prime is 31325954053. The next prime is 31325954089. The reversal of 31325954088 is 88045952313.

It is not an unprimeable number, because it can be changed into a prime (31325954089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40828 + ... + 253611.

It is an arithmetic number, because the mean of its divisors is an integer number (741988800).

Almost surely, 231325954088 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 31325954088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47487283200).

31325954088 is an abundant number, since it is smaller than the sum of its proper divisors (63648612312).

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

31325954088 is a wasteful number, since it uses less digits than its factorization.

31325954088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294503 (or 294499 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 31325954088 in words is "thirty-one billion, three hundred twenty-five million, nine hundred fifty-four thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 13 22 24 26 31 33 39 44 52 62 66 78 88 93 104 124 132 143 156 186 248 264 286 312 341 372 403 429 572 682 744 806 858 1023 1144 1209 1364 1612 1716 2046 2418 2728 3224 3432 4092 4433 4836 8184 8866 9672 13299 17732 26598 35464 53196 106392 294439 588878 883317 1177756 1766634 2355512 3238829 3533268 3827707 6477658 7066536 7655414 9127609 9716487 11483121 12955316 15310828 18255218 19432974 22966242 25910632 27382827 30621656 36510436 38865948 42104777 45932484 54765654 73020872 77731896 84209554 91864968 100403699 109531308 118658917 126314331 168419108 200807398 219062616 237317834 252628662 301211097 336838216 355976751 401614796 474635668 505257324 602422194 711953502 803229592 949271336 1010514648 1204844388 1305248087 1423907004 2409688776 2610496174 2847814008 3915744261 5220992348 7831488522 10441984696 15662977044 31325954088