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130825806 = 2328377047
BaseRepresentation
bin1111100110000…
…11111001001110
3100010011122021020
413303003321032
5231442411211
620552015010
73146000226
oct763037116
9303148236
10130825806
1167936401
1237991466
1321147627
1413537086
15b743306
hex7cc3e4e

130825806 has 16 divisors (see below), whose sum is σ = 262579584. Its totient is φ = 43453944.

The previous prime is 130825789. The next prime is 130825841. The reversal of 130825806 is 608528031.

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 7 ways as a sum of consecutive naturals, for example, 36826 + ... + 40221.

It is an arithmetic number, because the mean of its divisors is an integer number (16411224).

Almost surely, 2130825806 is an apocalyptic number.

130825806 is an abundant number, since it is smaller than the sum of its proper divisors (131753778).

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

130825806 is a wasteful number, since it uses less digits than its factorization.

130825806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77335.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 130825806 is about 11437.9109106515. The cubic root of 130825806 is about 507.6500964305.

The spelling of 130825806 in words is "one hundred thirty million, eight hundred twenty-five thousand, eight hundred six".

Divisors: 1 2 3 6 283 566 849 1698 77047 154094 231141 462282 21804301 43608602 65412903 130825806