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38892381042 = 236482063507
BaseRepresentation
bin100100001110001010…
…101010001101110010
310201101110212122221010
4210032022222031302
51114122422143132
625511130411350
72544534533004
oct441612521562
9121343778833
1038892381042
111554880a579
127654b90b56
13388a764a28
141c4d448374
1510296486cc
hex90e2aa372

38892381042 has 8 divisors (see below), whose sum is σ = 77784762096. Its totient is φ = 12964127012.

The previous prime is 38892381029. The next prime is 38892381053. The reversal of 38892381042 is 24018329883.

It is a sphenic number, since it is the product of 3 distinct primes.

38892381042 is an admirable number.

It is a super-2 number, since 2×388923810422 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38892380982 and 38892381000.

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, 3241031748 + ... + 3241031759.

It is an arithmetic number, because the mean of its divisors is an integer number (9723095262).

Almost surely, 238892381042 is an apocalyptic number.

38892381042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38892381042 is a wasteful number, since it uses less digits than its factorization.

38892381042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482063512.

The product of its (nonzero) digits is 663552, while the sum is 48.

It can be divided in two parts, 388923 and 81042, that added together give a triangular number (469965 = T969).

The spelling of 38892381042 in words is "thirty-eight billion, eight hundred ninety-two million, three hundred eighty-one thousand, forty-two".

Divisors: 1 2 3 6 6482063507 12964127014 19446190521 38892381042