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28147414202072 = 231110631949154387
BaseRepresentation
bin1100110011001100101001…
…00111111111011011011000
310200122212101200200021110222
412121212110213333123120
512142131401013431242
6135510424340055212
75633404110052004
oct631462447773330
9120585350607428
1028147414202072
118a72284574140
1231a71a8094508
13129239c8177a9
146d44b0aa5704
1533c2a38a35d2
hex1999949ff6d8

28147414202072 has 64 divisors (see below), whose sum is σ = 57658360032000. Its totient is φ = 12775602061440.

The previous prime is 28147414202071. The next prime is 28147414202113. The reversal of 28147414202072 is 27020241474182.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28147414202071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182240063 + ... + 182394449.

It is an arithmetic number, because the mean of its divisors is an integer number (900911875500).

Almost surely, 228147414202072 is an apocalyptic number.

28147414202072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28147414202072 is an abundant number, since it is smaller than the sum of its proper divisors (29510945829928).

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

28147414202072 is a wasteful number, since it uses less digits than its factorization.

28147414202072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157416 (or 157412 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 44.

The spelling of 28147414202072 in words is "twenty-eight trillion, one hundred forty-seven billion, four hundred fourteen million, two hundred two thousand, seventy-two".

Divisors: 1 2 4 8 11 22 44 88 1063 1949 2126 3898 4252 7796 8504 11693 15592 21439 23386 42878 46772 85756 93544 154387 171512 308774 617548 1235096 1698257 2071787 3396514 4143574 6793028 8287148 13586056 16574296 22789657 45579314 91158628 164113381 182317256 300900263 328226762 601800526 656453524 1203601052 1312907048 1805247191 2407202104 3309902893 3610494382 6619805786 7220988764 13239611572 14441977528 26479223144 319856979569 639713959138 1279427918276 2558855836552 3518426775259 7036853550518 14073707101036 28147414202072