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102513135511 = 166361643497
BaseRepresentation
bin101111101111001000…
…0100100111110010111
3100210121022112212001201
41133132100210332113
53134421330314021
6115032140133331
710256241163123
oct1373620447627
9323538485051
10102513135511
113a525aa0aa6
1217a4b537247
13988938a987
144d66b30583
1529eebac591
hex17de424f97

102513135511 has 4 divisors (see below), whose sum is σ = 102574780672. Its totient is φ = 102451490352.

The previous prime is 102513135493. The next prime is 102513135523. The reversal of 102513135511 is 115531315201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115531315201 = 224669514229.

It is a cyclic number.

It is not a de Polignac number, because 102513135511 - 213 = 102513127319 is a prime.

It is a super-2 number, since 2×1025131355112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102513135511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102513135311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30820086 + ... + 30823411.

It is an arithmetic number, because the mean of its divisors is an integer number (25643695168).

Almost surely, 2102513135511 is an apocalyptic number.

102513135511 is a deficient number, since it is larger than the sum of its proper divisors (61645161).

102513135511 is an equidigital number, since it uses as much as digits as its factorization.

102513135511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61645160.

The product of its (nonzero) digits is 2250, while the sum is 28.

The spelling of 102513135511 in words is "one hundred two billion, five hundred thirteen million, one hundred thirty-five thousand, five hundred eleven".

Divisors: 1 1663 61643497 102513135511