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13975390880 = 2551121137633
BaseRepresentation
bin11010000001111111…
…11000101010100000
31100001222011102012122
431000333320222200
5212110200002010
610230433043412
71003215601553
oct150077705240
940058142178
1013975390880
115a21820020
1228603b6568
1314194a3879
1496810c69a
1556bdc1855
hex340ff8aa0

13975390880 has 96 divisors (see below), whose sum is σ = 36190058688. Its totient is φ = 5057740800.

The previous prime is 13975390867. The next prime is 13975390883. The reversal of 13975390880 is 8809357931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13975390883) 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, 352544 + ... + 390176.

It is an arithmetic number, because the mean of its divisors is an integer number (376979778).

Almost surely, 213975390880 is an apocalyptic number.

13975390880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13975390880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18095029344).

13975390880 is an abundant number, since it is smaller than the sum of its proper divisors (22214667808).

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

13975390880 is a wasteful number, since it uses less digits than its factorization.

13975390880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37870 (or 37862 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 13975390880 in words is "thirteen billion, nine hundred seventy-five million, three hundred ninety thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 211 220 352 422 440 844 880 1055 1688 1760 2110 2321 3376 4220 4642 6752 8440 9284 11605 16880 18568 23210 33760 37136 37633 46420 74272 75266 92840 150532 185680 188165 301064 371360 376330 413963 602128 752660 827926 1204256 1505320 1655852 2069815 3010640 3311704 4139630 6021280 6623408 7940563 8279260 13246816 15881126 16558520 31762252 33117040 39702815 63524504 66234080 79405630 87346193 127049008 158811260 174692386 254098016 317622520 349384772 436730965 635245040 698769544 873461930 1270490080 1397539088 1746923860 2795078176 3493847720 6987695440 13975390880