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102423135 = 3515114519
BaseRepresentation
bin1100001101011…
…01101001011111
321010201122010110
412012231221133
5202210020020
614055141103
72352403503
oct606555137
9233648113
10102423135
11528a7021
122a374793
13182b1709
14d862303
158ed28e0
hex61ada5f

102423135 has 16 divisors (see below), whose sum is σ = 164021760. Its totient is φ = 54577440.

The previous prime is 102423127. The next prime is 102423137. The reversal of 102423135 is 531324201.

It is not a de Polignac number, because 102423135 - 23 = 102423127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102423137) 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, 20406 + ... + 24924.

It is an arithmetic number, because the mean of its divisors is an integer number (10251360).

Almost surely, 2102423135 is an apocalyptic number.

102423135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102423135 is a deficient number, since it is larger than the sum of its proper divisors (61598625).

102423135 is a wasteful number, since it uses less digits than its factorization.

102423135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6038.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102423135 is about 10120.4315619444. The cubic root of 102423135 is about 467.8780683518.

Adding to 102423135 its reverse (531324201), we get a palindrome (633747336).

The spelling of 102423135 in words is "one hundred two million, four hundred twenty-three thousand, one hundred thirty-five".

Divisors: 1 3 5 15 1511 4519 4533 7555 13557 22595 22665 67785 6828209 20484627 34141045 102423135