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130452240 = 2435543551
BaseRepresentation
bin1111100011010…
…00101100010000
3100002110122211110
413301220230100
5231343432430
620540013320
73142553142
oct761505420
9302418743
10130452240
1167700776
1237831240
1321046599
141347ac92
15b6bc7b0
hex7c68b10

130452240 has 40 divisors (see below), whose sum is σ = 404402688. Its totient is φ = 34787200.

The previous prime is 130452173. The next prime is 130452263. The reversal of 130452240 is 42254031.

130452240 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271536 + ... + 272015.

Almost surely, 2130452240 is an apocalyptic number.

130452240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130452240 is an abundant number, since it is smaller than the sum of its proper divisors (273950448).

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

130452240 is a wasteful number, since it uses less digits than its factorization.

130452240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543567 (or 543561 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 130452240 is about 11421.5690690903. The cubic root of 130452240 is about 507.1664466786.

The spelling of 130452240 in words is "one hundred thirty million, four hundred fifty-two thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 543551 1087102 1630653 2174204 2717755 3261306 4348408 5435510 6522612 8153265 8696816 10871020 13045224 16306530 21742040 26090448 32613060 43484080 65226120 130452240