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55998504744 = 233713434011487
BaseRepresentation
bin110100001001110001…
…010101111100101000
312100112122001210012020
4310021301111330220
51404141104122434
641420402144440
74021460302530
oct641161257450
9170478053166
1055998504744
1121826772496
12aa29952120
135385734010
1429d32704c0
1516cb2d4849
hexd09c55f28

55998504744 has 256 divisors, whose sum is σ = 176868679680. Its totient is φ = 14379724800.

The previous prime is 55998504743. The next prime is 55998504797. The reversal of 55998504744 is 44740589955.

It is not an unprimeable number, because it can be changed into a prime (55998504743) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 37657969 + ... + 37659455.

It is an arithmetic number, because the mean of its divisors is an integer number (690893280).

Almost surely, 255998504744 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 55998504744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88434339840).

55998504744 is an abundant number, since it is smaller than the sum of its proper divisors (120870174936).

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

55998504744 is a wasteful number, since it uses less digits than its factorization.

55998504744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960 (or 1956 counting only the distinct ones).

The product of its (nonzero) digits is 36288000, while the sum is 60.

The spelling of 55998504744 in words is "fifty-five billion, nine hundred ninety-eight million, five hundred four thousand, seven hundred forty-four".