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620081052 = 223177434091
BaseRepresentation
bin100100111101011…
…010111110011100
31121012210101021220
4210331122332130
52232220043202
6141310253340
721236413323
oct4475327634
91535711256
10620081052
11299024088
121537b7250
139b609b86
145c4d30ba
1539687abc
hex24f5af9c

620081052 has 48 divisors (see below), whose sum is σ = 1534401792. Its totient is φ = 194225920.

The previous prime is 620081051. The next prime is 620081057. The reversal of 620081052 is 250180026.

It is a super-2 number, since 2×6200810522 = 769001022098853408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620081051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149527 + ... + 153617.

It is an arithmetic number, because the mean of its divisors is an integer number (31966704).

Almost surely, 2620081052 is an apocalyptic number.

It is an amenable number.

620081052 is an abundant number, since it is smaller than the sum of its proper divisors (914320740).

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

620081052 is a wasteful number, since it uses less digits than its factorization.

620081052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858 (or 4856 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 620081052 is about 24901.4267061147. The cubic root of 620081052 is about 852.7390543404.

The spelling of 620081052 in words is "six hundred twenty million, eighty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 743 1486 2229 2972 4091 4458 8182 8916 12273 12631 16364 24546 25262 37893 49092 50524 69547 75786 139094 151572 208641 278188 417282 834564 3039613 6079226 9118839 12158452 18237678 36475356 51673421 103346842 155020263 206693684 310040526 620081052