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38759772140 = 2251937988607
BaseRepresentation
bin100100000110010000…
…110010111111101100
310201001020100102201022
4210012100302333230
51113340000202030
625450032233312
72541334425065
oct440620627754
9121036312638
1038759772140
111548a976541
12761869b838
13386914491b
141c399a956c
15101cba1de5
hex906432fec

38759772140 has 12 divisors (see below), whose sum is σ = 81395521536. Its totient is φ = 15503908848.

The previous prime is 38759772097. The next prime is 38759772167. The reversal of 38759772140 is 4127795783.

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 3 ways as a sum of consecutive naturals, for example, 968994284 + ... + 968994323.

It is an arithmetic number, because the mean of its divisors is an integer number (6782960128).

Almost surely, 238759772140 is an apocalyptic number.

It is an amenable number.

38759772140 is an abundant number, since it is smaller than the sum of its proper divisors (42635749396).

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

38759772140 is a wasteful number, since it uses less digits than its factorization.

38759772140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937988616 (or 1937988614 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 38759772140 in words is "thirty-eight billion, seven hundred fifty-nine million, seven hundred seventy-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1937988607 3875977214 7751954428 9689943035 19379886070 38759772140