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102115013 = 71113102013
BaseRepresentation
bin1100001011000…
…10011011000101
321010010222110112
412011202123011
5202120140023
614044402405
72346651260
oct605423305
9233128415
10102115013
1152706580
122a246405
13182043b0
14d7c1cd7
158e71478
hex61626c5

102115013 has 16 divisors (see below), whose sum is σ = 137106816. Its totient is φ = 73448640.

The previous prime is 102115007. The next prime is 102115019. The reversal of 102115013 is 310511201.

It is an interprime number because it is at equal distance from previous prime (102115007) and next prime (102115019).

It is a cyclic number.

It is not a de Polignac number, because 102115013 - 28 = 102114757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102115019) 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, 50006 + ... + 52007.

It is an arithmetic number, because the mean of its divisors is an integer number (8569176).

Almost surely, 2102115013 is an apocalyptic number.

102115013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

102115013 is a deficient number, since it is larger than the sum of its proper divisors (34991803).

102115013 is a wasteful number, since it uses less digits than its factorization.

102115013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102044.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 102115013 is about 10105.1973261288. The cubic root of 102115013 is about 467.4084207740.

Adding to 102115013 its reverse (310511201), we get a palindrome (412626214).

The spelling of 102115013 in words is "one hundred two million, one hundred fifteen thousand, thirteen".

Divisors: 1 7 11 13 77 91 143 1001 102013 714091 1122143 1326169 7855001 9283183 14587859 102115013