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20056715552 = 251932988019
BaseRepresentation
bin10010101011011110…
…010011000100100000
31220202210020201100202
4102223132103010200
5312034004344202
613114113004332
71310011161236
oct225336230440
956683221322
1020056715552
118562547285
123a78b536a8
131b78374933
14d83a4a956
157c5c20802
hex4ab793120

20056715552 has 24 divisors (see below), whose sum is σ = 41564905200. Its totient is φ = 9500549184.

The previous prime is 20056715543. The next prime is 20056715561. The reversal of 20056715552 is 25551765002.

It is an interprime number because it is at equal distance from previous prime (20056715543) and next prime (20056715561).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16493402 + ... + 16494617.

It is an arithmetic number, because the mean of its divisors is an integer number (1731871050).

Almost surely, 220056715552 is an apocalyptic number.

It is an amenable number.

20056715552 is an abundant number, since it is smaller than the sum of its proper divisors (21508189648).

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

20056715552 is a wasteful number, since it uses less digits than its factorization.

20056715552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32988048 (or 32988040 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 20056715552 in words is "twenty billion, fifty-six million, seven hundred fifteen thousand, five hundred fifty-two".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 32988019 65976038 131952076 263904152 527808304 626772361 1055616608 1253544722 2507089444 5014178888 10028357776 20056715552