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513457160157 = 32507411124353
BaseRepresentation
bin1110111100011000110…
…11100111111111011101
31211002022201020021112200
413132030123213333131
531403030013111112
61031513504522113
752044642564414
oct7361433477735
91732281207480
10513457160157
111888351aa067
1283617920339
133955a155536
141abcc59247b
15d552289cdc
hex778c6e7fdd

513457160157 has 12 divisors (see below), whose sum is σ = 741675618684. Its totient is φ = 342297722880.

The previous prime is 513457160149. The next prime is 513457160173. The reversal of 513457160157 is 751061754315.

513457160157 is a `hidden beast` number, since 5 + 1 + 3 + 4 + 571 + 60 + 15 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 117471393081 + 395985767076 = 342741^2 + 629274^2 .

It is not a de Polignac number, because 513457160157 - 23 = 513457160149 is a prime.

It is a super-2 number, since 2×5134571601572 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513457160857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105508 + ... + 1018845.

It is an arithmetic number, because the mean of its divisors is an integer number (61806301557).

Almost surely, 2513457160157 is an apocalyptic number.

It is an amenable number.

513457160157 is a deficient number, since it is larger than the sum of its proper divisors (228218458527).

513457160157 is a wasteful number, since it uses less digits than its factorization.

513457160157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175100 (or 1175097 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

The spelling of 513457160157 in words is "five hundred thirteen billion, four hundred fifty-seven million, one hundred sixty thousand, one hundred fifty-seven".

Divisors: 1 3 9 50741 152223 456669 1124353 3373059 10119177 57050795573 171152386719 513457160157