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102115323 = 341677549
BaseRepresentation
bin1100001011000…
…10011111111011
321010010222220000
412011202133323
5202120142243
614044404043
72346652212
oct605423773
9233128800
10102115323
1152706832
122a246623
131820458b
14d7c2079
158e715d3
hex61627fb

102115323 has 20 divisors (see below), whose sum is σ = 153476400. Its totient is φ = 67660272.

The previous prime is 102115267. The next prime is 102115327. The reversal of 102115323 is 323511201.

It is not a de Polignac number, because 102115323 - 29 = 102114811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102115296 and 102115305.

It is not an unprimeable number, because it can be changed into a prime (102115327) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9753 + ... + 17301.

It is an arithmetic number, because the mean of its divisors is an integer number (7673820).

Almost surely, 2102115323 is an apocalyptic number.

102115323 is a deficient number, since it is larger than the sum of its proper divisors (51361077).

102115323 is an equidigital number, since it uses as much as digits as its factorization.

102115323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728 (or 7719 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 102115323 is about 10105.2126647587. The cubic root of 102115323 is about 467.4088937585.

Adding to 102115323 its reverse (323511201), we get a palindrome (425626524).

The spelling of 102115323 in words is "one hundred two million, one hundred fifteen thousand, three hundred twenty-three".

Divisors: 1 3 9 27 81 167 501 1503 4509 7549 13527 22647 67941 203823 611469 1260683 3782049 11346147 34038441 102115323