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130220856 = 23324342061
BaseRepresentation
bin1111100001100…
…00001100111000
3100002000220102200
413300300030320
5231314031411
620531030200
73140600433
oct760601470
9302026380
10130220856
1167562947
123773b360
1320c9517c
141341a81a
15b673e56
hex7c30338

130220856 has 48 divisors (see below), whose sum is σ = 360891960. Its totient is φ = 42396480.

The previous prime is 130220837. The next prime is 130220869. The reversal of 130220856 is 658022031.

It is a zygodrome in base 2.

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, 17935 + ... + 24126.

Almost surely, 2130220856 is an apocalyptic number.

It is an amenable number.

130220856 is an abundant number, since it is smaller than the sum of its proper divisors (230671104).

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

130220856 is a wasteful number, since it uses less digits than its factorization.

130220856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42116 (or 42109 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 130220856 is about 11411.4353172596. The cubic root of 130220856 is about 506.8664143931.

Adding to 130220856 its reverse (658022031), we get a palindrome (788242887).

The spelling of 130220856 in words is "one hundred thirty million, two hundred twenty thousand, eight hundred fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 43 72 86 129 172 258 344 387 516 774 1032 1548 3096 42061 84122 126183 168244 252366 336488 378549 504732 757098 1009464 1514196 1808623 3028392 3617246 5425869 7234492 10851738 14468984 16277607 21703476 32555214 43406952 65110428 130220856