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56784840190 = 25131492931587
BaseRepresentation
bin110100111000101000…
…111110010111111110
312102120102200202122021
4310320220332113332
51412243404341230
642030412110354
74050116114641
oct647050762776
9172512622567
1056784840190
112209a61a9a1
12b0091653ba
13547c611370
142a6987da58
15172535cc7a
hexd38a3e5fe

56784840190 has 32 divisors (see below), whose sum is σ = 110814026400. Its totient is φ = 20825986944.

The previous prime is 56784840169. The next prime is 56784840191. The reversal of 56784840190 is 9104848765.

It is a super-2 number, since 2×567848401902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56784840191) 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, 1446424 + ... + 1485163.

It is an arithmetic number, because the mean of its divisors is an integer number (3462938325).

Almost surely, 256784840190 is an apocalyptic number.

56784840190 is a deficient number, since it is larger than the sum of its proper divisors (54029186210).

56784840190 is a wasteful number, since it uses less digits than its factorization.

56784840190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931756.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 56784840190 in words is "fifty-six billion, seven hundred eighty-four million, eight hundred forty thousand, one hundred ninety".

Divisors: 1 2 5 10 13 26 65 130 149 298 745 1490 1937 3874 9685 19370 2931587 5863174 14657935 29315870 38110631 76221262 190553155 381106310 436806463 873612926 2184032315 4368064630 5678484019 11356968038 28392420095 56784840190