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56784593380 = 22537659116443
BaseRepresentation
bin110100111000101000…
…000010000111100100
312102120102020020002011
4310320220002013210
51412243323442010
642030402524004
74050114036244
oct647050020744
9172512206064
1056784593380
112209a471519
12b009066604
13547c555c18
142a69817b24
15172530ea8a
hexd38a021e4

56784593380 has 48 divisors (see below), whose sum is σ = 122657451840. Its totient is φ = 22066224768.

The previous prime is 56784593357. The next prime is 56784593401. The reversal of 56784593380 is 8339548765.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

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, 429439 + ... + 545881.

It is an arithmetic number, because the mean of its divisors is an integer number (2555363580).

Almost surely, 256784593380 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 56784593380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61328725920).

56784593380 is an abundant number, since it is smaller than the sum of its proper divisors (65872858460).

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

56784593380 is a wasteful number, since it uses less digits than its factorization.

56784593380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117148 (or 117146 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 56784593380 in words is "fifty-six billion, seven hundred eighty-four million, five hundred ninety-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 659 740 1318 2636 3295 6590 13180 24383 48766 97532 116443 121915 232886 243830 465772 487660 582215 1164430 2328860 4308391 8616782 17233564 21541955 43083910 76735937 86167820 153471874 306943748 383679685 767359370 1534718740 2839229669 5678459338 11356918676 14196148345 28392296690 56784593380