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56143252984 = 23713235132803
BaseRepresentation
bin110100010010011001…
…100000110111111000
312100220201102202110011
4310102121200313320
51404440133043414
641443012431304
74025165530210
oct642231406770
9170821382404
1056143252984
11218a0447a35
12aa6a318534
1353a9714670
142a0858d240
1516d8d77dc4
hexd12660df8

56143252984 has 64 divisors (see below), whose sum is σ = 129620413440. Its totient is φ = 22200393600.

The previous prime is 56143252943. The next prime is 56143253051. The reversal of 56143252984 is 48925234165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1695127 + ... + 1727929.

It is an arithmetic number, because the mean of its divisors is an integer number (2025318960).

Almost surely, 256143252984 is an apocalyptic number.

It is an amenable number.

56143252984 is an abundant number, since it is smaller than the sum of its proper divisors (73477160456).

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

56143252984 is a wasteful number, since it uses less digits than its factorization.

56143252984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35180 (or 35176 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 49.

It can be divided in two parts, 561432 and 52984, that added together give a palindrome (614416).

The spelling of 56143252984 in words is "fifty-six billion, one hundred forty-three million, two hundred fifty-two thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 2351 4702 9404 16457 18808 30563 32803 32914 61126 65606 65828 122252 131212 131656 213941 229621 244504 262424 426439 427882 459242 852878 855764 918484 1705756 1711528 1836968 2985073 3411512 5970146 11940292 23880584 77119853 154239706 308479412 539838971 616958824 1002558089 1079677942 2005116178 2159355884 4010232356 4318711768 7017906623 8020464712 14035813246 28071626492 56143252984