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102432894 = 2345737357
BaseRepresentation
bin1100001101100…
…00000001111110
321010202010111220
412012300001332
5202210323034
614055254210
72352444114
oct606600176
9233663456
10102432894
1152903393
122a37a366
13182b5ca5
14d865ab4
158ed5749
hex61b007e

102432894 has 16 divisors (see below), whose sum is σ = 205319568. Its totient is φ = 34068672.

The previous prime is 102432893. The next prime is 102432917. The reversal of 102432894 is 498234201.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102432893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15937 + ... + 21420.

It is an arithmetic number, because the mean of its divisors is an integer number (12832473).

Almost surely, 2102432894 is an apocalyptic number.

102432894 is an abundant number, since it is smaller than the sum of its proper divisors (102886674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102432894 is a wasteful number, since it uses less digits than its factorization.

102432894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37819.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 102432894 is about 10120.9136939310. The cubic root of 102432894 is about 467.8929278757.

The spelling of 102432894 in words is "one hundred two million, four hundred thirty-two thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 457 914 1371 2742 37357 74714 112071 224142 17072149 34144298 51216447 102432894