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90028776829248 = 26384712893539
BaseRepresentation
bin10100011110000101110101…
…010000110011000101000000
3102210202200000020202200000000
4110132011311100303011000
543300012413332013443
6515250352113000000
724651236005502205
oct2436056520630500
9383680006680000
1090028776829248
112675aa98524974
12a12021b253000
133b308a5b3794a
1418335b78c9cac
15a61cc5dde8d3
hex51e175433140

90028776829248 has 504 divisors, whose sum is σ = 273953695017600. Its totient is φ = 29340011538432.

The previous prime is 90028776829169. The next prime is 90028776829373. The reversal of 90028776829248 is 84292867782009.

It is a Harshad number since it is a multiple of its sum of digits (72).

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 71 ways as a sum of consecutive naturals, for example, 25439042263 + ... + 25439045801.

Almost surely, 290028776829248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90028776829248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136976847508800).

90028776829248 is an abundant number, since it is smaller than the sum of its proper divisors (183924918188352).

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

90028776829248 is an equidigital number, since it uses as much as digits as its factorization.

90028776829248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911 (or 4880 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 72.

The spelling of 90028776829248 in words is "ninety trillion, twenty-eight billion, seven hundred seventy-six million, eight hundred twenty-nine thousand, two hundred forty-eight".