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38757468940 = 2251937873447
BaseRepresentation
bin100100000110001000…
…000000101100001100
310201001002000102022121
4210012020000230030
51113333403001230
625445511022324
72541306023161
oct440610005414
9121032012277
1038757468940
1115489643073
12761796a9a4
133868819498
141c3956a068
15101c89977a
hex906200b0c

38757468940 has 12 divisors (see below), whose sum is σ = 81390684816. Its totient is φ = 15502987568.

The previous prime is 38757468913. The next prime is 38757468973. The reversal of 38757468940 is 4986475783.

It is a happy 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, 968936704 + ... + 968936743.

It is an arithmetic number, because the mean of its divisors is an integer number (6782557068).

Almost surely, 238757468940 is an apocalyptic number.

It is an amenable number.

38757468940 is an abundant number, since it is smaller than the sum of its proper divisors (42633215876).

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

38757468940 is a wasteful number, since it uses less digits than its factorization.

38757468940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937873456 (or 1937873454 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 38757468940 in words is "thirty-eight billion, seven hundred fifty-seven million, four hundred sixty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1937873447 3875746894 7751493788 9689367235 19378734470 38757468940