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28579378392042 = 2341116176334927
BaseRepresentation
bin1100111111110001001111…
…01100100110101111101010
310202012011101000111201221120
412133320213230212233222
512221221031332021132
6140441103555520110
76006535432066152
oct637704754465752
9122164330451846
1028579378392042
1191194a0048565
123256a5bbb9036
1312c40404378ba
1470b36c0c9762
1534863656302c
hex19fe27b26bea

28579378392042 has 16 divisors (see below), whose sum is σ = 58552872803712. Its totient is φ = 9294106794080.

The previous prime is 28579378392023. The next prime is 28579378392049. The reversal of 28579378392042 is 24029387397582.

It is not an unprimeable number, because it can be changed into a prime (28579378392049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58088167218 + ... + 58088167709.

It is an arithmetic number, because the mean of its divisors is an integer number (3659554550232).

Almost surely, 228579378392042 is an apocalyptic number.

28579378392042 is an abundant number, since it is smaller than the sum of its proper divisors (29973494411670).

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

28579378392042 is a wasteful number, since it uses less digits than its factorization.

28579378392042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116176334973.

The product of its (nonzero) digits is 365783040, while the sum is 69.

The spelling of 28579378392042 in words is "twenty-eight trillion, five hundred seventy-nine billion, three hundred seventy-eight million, three hundred ninety-two thousand, forty-two".

Divisors: 1 2 3 6 41 82 123 246 116176334927 232352669854 348529004781 697058009562 4763229732007 9526459464014 14289689196021 28579378392042