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130557822 = 23472331987
BaseRepresentation
bin1111100100000…
…10011101111110
3100002200000122220
413302002131332
5231410322242
620542150210
73143503023
oct762023576
9302600586
10130557822
116777302a
1237882366
1321082665
14134a754a
15b6ddbec
hex7c8277e

130557822 has 32 divisors (see below), whose sum is σ = 267950592. Its totient is φ = 42389184.

The previous prime is 130557781. The next prime is 130557839. The reversal of 130557822 is 228755031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64713 + ... + 66699.

It is an arithmetic number, because the mean of its divisors is an integer number (8373456).

Almost surely, 2130557822 is an apocalyptic number.

130557822 is an abundant number, since it is smaller than the sum of its proper divisors (137392770).

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

130557822 is a wasteful number, since it uses less digits than its factorization.

130557822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 130557822 is about 11426.1901787079. The cubic root of 130557822 is about 507.3032354577.

The spelling of 130557822 in words is "one hundred thirty million, five hundred fifty-seven thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 47 94 141 233 282 466 699 1398 1987 3974 5961 10951 11922 21902 32853 65706 93389 186778 280167 462971 560334 925942 1388913 2777826 21759637 43519274 65278911 130557822