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31250970296 = 23721323115217
BaseRepresentation
bin11101000110101100…
…111111011010111000
32222122221012210000022
4131012230333122320
51003000222022141
622205000430012
72154266602400
oct350654773270
988587183008
1031250970296
11122873a3587
126081a78308
132c405c4500
141726645800
15c2d881b4b
hex746b3f6b8

31250970296 has 144 divisors (see below), whose sum is σ = 76194699840. Its totient is φ = 11963427840.

The previous prime is 31250970287. The next prime is 31250970397. The reversal of 31250970296 is 69207905213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2046080 + ... + 2061296.

It is an arithmetic number, because the mean of its divisors is an integer number (529129860).

Almost surely, 231250970296 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 31250970296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38097349920).

31250970296 is an abundant number, since it is smaller than the sum of its proper divisors (44943729544).

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

31250970296 is a wasteful number, since it uses less digits than its factorization.

31250970296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15294 (or 15270 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 31250970296 in words is "thirty-one billion, two hundred fifty million, nine hundred seventy thousand, two hundred ninety-six".

Divisors: 1 2 4 7 8 13 14 26 28 31 49 52 56 62 91 98 104 124 169 182 196 217 248 338 364 392 403 434 637 676 728 806 868 1183 1274 1352 1519 1612 1736 2366 2548 2821 3038 3224 4732 5096 5239 5642 6076 8281 9464 10478 11284 12152 15217 16562 19747 20956 22568 30434 33124 36673 39494 41912 60868 66248 73346 78988 106519 121736 146692 157976 197821 213038 256711 293384 395642 426076 471727 513422 745633 791284 852152 943454 1026844 1384747 1491266 1582568 1886908 2053688 2571673 2769494 2982532 3302089 3773816 5143346 5538988 5965064 6132451 6604178 9693229 10286692 11077976 12264902 13208356 18001711 19386458 20573384 23114623 24529804 26416712 36003422 38772916 42927157 46229246 49059608 72006844 77545832 79721863 85854314 92458492 126011977 144013688 159443726 171708628 184916984 252023954 300490099 318887452 343417256 504047908 558053041 600980198 637774904 1008095816 1116106082 1201960396 2232212164 2403920792 3906371287 4464424328 7812742574 15625485148 31250970296