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1492131870 = 232516579243
BaseRepresentation
bin101100011110000…
…0010000000011110
310211222201011010100
41120330002000132
511023441204440
6404021321530
751655624455
oct13074020036
93758634110
101492131870
116a62a6839
123578662a6
131aa198b88
14102255b9c
158aee3230
hex58f0201e

1492131870 has 24 divisors (see below), whose sum is σ = 3879543096. Its totient is φ = 397901808.

The previous prime is 1492131859. The next prime is 1492131887. The reversal of 1492131870 is 781312941.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8289532 + ... + 8289711.

It is an arithmetic number, because the mean of its divisors is an integer number (161647629).

Almost surely, 21492131870 is an apocalyptic number.

1492131870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1492131870 is an abundant number, since it is smaller than the sum of its proper divisors (2387411226).

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

1492131870 is a wasteful number, since it uses less digits than its factorization.

1492131870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16579256 (or 16579253 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1492131870 is about 38628.1227863845. The cubic root of 1492131870 is about 1142.7092304185.

The spelling of 1492131870 in words is "one billion, four hundred ninety-two million, one hundred thirty-one thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 16579243 33158486 49737729 82896215 99475458 149213187 165792430 248688645 298426374 497377290 746065935 1492131870