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28883090407136 = 257128942367889
BaseRepresentation
bin1101001000100110111100…
…10101111111111011100000
310210021012022020020200010012
412210103132111333323200
512241210032121012021
6141232413014224052
76040506622450130
oct644233625777340
9123235266220105
1028883090407136
119226282610729
1232a58a0655028
131316882305c34
1471bd40218ac0
153514aea5d35b
hex1a44de57fee0

28883090407136 has 24 divisors (see below), whose sum is σ = 64986953416560. Its totient is φ = 12378467317248.

The previous prime is 28883090407117. The next prime is 28883090407177. The reversal of 28883090407136 is 63170409038882.

It is a happy number.

It is a super-2 number, since 2×288830904071362 (a number of 28 digits) contains 22 as substring.

It is a congruent 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, 64471183721 + ... + 64471184168.

It is an arithmetic number, because the mean of its divisors is an integer number (2707789725690).

Almost surely, 228883090407136 is an apocalyptic number.

It is an amenable number.

28883090407136 is an abundant number, since it is smaller than the sum of its proper divisors (36103863009424).

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

28883090407136 is a wasteful number, since it uses less digits than its factorization.

28883090407136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128942367906 (or 128942367898 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 28883090407136 in words is "twenty-eight trillion, eight hundred eighty-three billion, ninety million, four hundred seven thousand, one hundred thirty-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 128942367889 257884735778 515769471556 902596575223 1031538943112 1805193150446 2063077886224 3610386300892 4126155772448 7220772601784 14441545203568 28883090407136