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102487432 = 2377316573
BaseRepresentation
bin1100001101111…
…01010110001000
321010211220022211
412012331112020
5202214044212
614100354504
72353062115
oct606752610
9233756284
10102487432
1152940363
122a3a5a34
1318304a68
14d87b90c
158ee69a7
hex61bd588

102487432 has 16 divisors (see below), whose sum is σ = 192424140. Its totient is φ = 51174336.

The previous prime is 102487417. The next prime is 102487433. The reversal of 102487432 is 234784201.

It can be written as a sum of positive squares in 2 ways, for example, as 99480676 + 3006756 = 9974^2 + 1734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102487394 and 102487403.

It is not an unprimeable number, because it can be changed into a prime (102487433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2103 + ... + 14470.

Almost surely, 2102487432 is an apocalyptic number.

It is an amenable number.

102487432 is a deficient number, since it is larger than the sum of its proper divisors (89936708).

102487432 is a wasteful number, since it uses less digits than its factorization.

102487432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17352 (or 17348 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 102487432 is about 10123.6076573522. The cubic root of 102487432 is about 467.9759526933.

The spelling of 102487432 in words is "one hundred two million, four hundred eighty-seven thousand, four hundred thirty-two".

Divisors: 1 2 4 8 773 1546 3092 6184 16573 33146 66292 132584 12810929 25621858 51243716 102487432