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56874980 = 22519971543
BaseRepresentation
bin1101100011110…
…1011111100100
310222000112210202
43120331133210
5104024444410
65351010032
71260300161
oct330753744
9128015722
1056874980
112a117018
1217069918
13ba24746
1477a7068
154ed6ca5
hex363d7e4

56874980 has 48 divisors (see below), whose sum is σ = 127102080. Its totient is φ = 21316608.

The previous prime is 56874973. The next prime is 56874991. The reversal of 56874980 is 8947865.

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, 36089 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (2647960).

Almost surely, 256874980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56874980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63551040).

56874980 is an abundant number, since it is smaller than the sum of its proper divisors (70227100).

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

56874980 is a wasteful number, since it uses less digits than its factorization.

56874980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 56874980 is about 7541.5502385120. The cubic root of 56874980 is about 384.5685389714.

The spelling of 56874980 in words is "fifty-six million, eight hundred seventy-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 97 190 194 380 388 485 970 1543 1843 1940 3086 3686 6172 7372 7715 9215 15430 18430 29317 30860 36860 58634 117268 146585 149671 293170 299342 586340 598684 748355 1496710 2843749 2993420 5687498 11374996 14218745 28437490 56874980