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15311950947104 = 257503135898457
BaseRepresentation
bin1101111011010001011101…
…1001011010001100100000
32000012210211012002102102012
43132310113121122030200
54001332333420301404
652322114013012052
73140152263404360
oct336642731321440
960183735072365
1015311950947104
114973842145269
121873685484028
13870babc99906
143ad160d069a0
151b8474104a6e
hexded1765a320

15311950947104 has 48 divisors (see below), whose sum is σ = 34520382707328. Its totient is φ = 6549218391552.

The previous prime is 15311950947053. The next prime is 15311950947107. The reversal of 15311950947104 is 40174905911351.

15311950947104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15311950947107) 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, 67836557 + ... + 68061900.

It is an arithmetic number, because the mean of its divisors is an integer number (719174639736).

Almost surely, 215311950947104 is an apocalyptic number.

15311950947104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15311950947104 is an abundant number, since it is smaller than the sum of its proper divisors (19208431760224).

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

15311950947104 is a wasteful number, since it uses less digits than its factorization.

15311950947104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135898977 (or 135898969 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 15311950947104 in words is "fifteen trillion, three hundred eleven billion, nine hundred fifty million, nine hundred forty-seven thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 503 1006 2012 3521 4024 7042 8048 14084 16096 28168 56336 112672 135898457 271796914 543593828 951289199 1087187656 1902578398 2174375312 3805156796 4348750624 7610313592 15220627184 30441254368 68356923871 136713847742 273427695484 478498467097 546855390968 956996934194 1093710781936 1913993868388 2187421563872 3827987736776 7655975473552 15311950947104