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11157959057 = 719372267417
BaseRepresentation
bin10100110010001000…
…01111000110010001
31001210121200001022212
422121010033012101
5140322414142212
65043105441505
7543335041610
oct123104170621
931717601285
1011157959057
114806416873
1221b4940295
13108a88214b
1477bc6b877
15454891e22
hex29910f191

11157959057 has 16 divisors (see below), whose sum is σ = 13785901440. Its totient is φ = 8815713408.

The previous prime is 11157959051. The next prime is 11157959069. The reversal of 11157959057 is 75095975111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11157959057 - 220 = 11156910481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11157958996 and 11157959014.

It is not an unprimeable number, because it can be changed into a prime (11157959051) 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, 1128788 + ... + 1138629.

It is an arithmetic number, because the mean of its divisors is an integer number (861618840).

Almost surely, 211157959057 is an apocalyptic number.

It is an amenable number.

11157959057 is a deficient number, since it is larger than the sum of its proper divisors (2627942383).

11157959057 is a wasteful number, since it uses less digits than its factorization.

11157959057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267480.

The product of its (nonzero) digits is 496125, while the sum is 50.

The spelling of 11157959057 in words is "eleven billion, one hundred fifty-seven million, nine hundred fifty-nine thousand, fifty-seven".

Divisors: 1 7 19 37 133 259 703 4921 2267417 15871919 43080923 83894429 301566461 587261003 1593994151 11157959057