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130438372 = 2264150873
BaseRepresentation
bin1111100011001…
…01010011100100
3100002102221210211
413301211103210
5231343011442
620535425204
73142464541
oct761452344
9302387724
10130438372
11676a1309
1237825204
132104018c
1413475bc8
15b6b8617
hex7c654e4

130438372 has 12 divisors (see below), whose sum is σ = 228627756. Its totient is φ = 65116160.

The previous prime is 130438349. The next prime is 130438381. The reversal of 130438372 is 273834031.

130438372 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 99680256 + 30758116 = 9984^2 + 5546^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22873 + ... + 28000.

It is an arithmetic number, because the mean of its divisors is an integer number (19052313).

Almost surely, 2130438372 is an apocalyptic number.

It is an amenable number.

130438372 is a deficient number, since it is larger than the sum of its proper divisors (98189384).

130438372 is a wasteful number, since it uses less digits than its factorization.

130438372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51518 (or 51516 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 130438372 is about 11420.9619559825. The cubic root of 130438372 is about 507.1484742428.

The spelling of 130438372 in words is "one hundred thirty million, four hundred thirty-eight thousand, three hundred seventy-two".

Divisors: 1 2 4 641 1282 2564 50873 101746 203492 32609593 65219186 130438372