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19800592752 = 243412512349
BaseRepresentation
bin10010011100001101…
…010001000101110000
31220002221022022221010
4102130031101011300
5311022422432002
613032443230520
71300451155443
oct223415210560
956087268833
1019800592752
118440a11446
123a07218440
131b3729a395
14d5ba1965a
157ad4cc46c
hex49c351170

19800592752 has 20 divisors (see below), whose sum is σ = 51151531400. Its totient is φ = 6600197568.

The previous prime is 19800592739. The next prime is 19800592789. The reversal of 19800592752 is 25729500891.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 412512349 = 19800592752 / (1 + 9 + 8 + 0 + 0 + 5 + 9 + 2 + 7 + 5 + 2).

It is a congruent number.

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, 206256127 + ... + 206256222.

It is an arithmetic number, because the mean of its divisors is an integer number (2557576570).

Almost surely, 219800592752 is an apocalyptic number.

19800592752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19800592752 is an abundant number, since it is smaller than the sum of its proper divisors (31350938648).

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

19800592752 is a wasteful number, since it uses less digits than its factorization.

19800592752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412512360 (or 412512354 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 19800592752 in words is "nineteen billion, eight hundred million, five hundred ninety-two thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 412512349 825024698 1237537047 1650049396 2475074094 3300098792 4950148188 6600197584 9900296376 19800592752