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38808320742 = 2323316513649
BaseRepresentation
bin100100001001001001…
…111111101011100110
310201011121200221212200
4210021021333223212
51113434412230432
625454524555330
72542464166152
oct441111775346
9121147627780
1038808320742
1115505315854
1276309b2b46
1338762124c9
141c42206062
151022091a7c
hex90927fae6

38808320742 has 24 divisors (see below), whose sum is σ = 84338740200. Its totient is φ = 12897023040.

The previous prime is 38808320737. The next prime is 38808320767. The reversal of 38808320742 is 24702380883.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3250867 + ... + 3262782.

It is an arithmetic number, because the mean of its divisors is an integer number (3514114175).

Almost surely, 238808320742 is an apocalyptic number.

38808320742 is an abundant number, since it is smaller than the sum of its proper divisors (45530419458).

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

38808320742 is a wasteful number, since it uses less digits than its factorization.

38808320742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513988 (or 6513985 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 38808320742 in words is "thirty-eight billion, eight hundred eight million, three hundred twenty thousand, seven hundred forty-two".

Divisors: 1 2 3 6 9 18 331 662 993 1986 2979 5958 6513649 13027298 19540947 39081894 58622841 117245682 2156017819 4312035638 6468053457 12936106914 19404160371 38808320742