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20475455076 = 22372340587
BaseRepresentation
bin10011000100011011…
…101010011001100100
31221211222011220000000
4103010123222121210
5313413204030301
613223432021300
71323254332206
oct230433523144
957758156000
1020475455076
1187579514aa
123b75231830
131c140479bb
14dc34cc776
157ec886786
hex4c46ea664

20475455076 has 48 divisors (see below), whose sum is σ = 53739900480. Its totient is φ = 6825148776.

The previous prime is 20475455057. The next prime is 20475455101. The reversal of 20475455076 is 67055457402.

20475455076 is a `hidden beast` number, since 2 + 0 + 47 + 54 + 550 + 7 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161546 + ... + 1179041.

It is an arithmetic number, because the mean of its divisors is an integer number (1119581260).

Almost surely, 220475455076 is an apocalyptic number.

It is an amenable number.

20475455076 is an abundant number, since it is smaller than the sum of its proper divisors (33264445404).

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

20475455076 is an equidigital number, since it uses as much as digits as its factorization.

20475455076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340612 (or 2340592 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The spelling of 20475455076 in words is "twenty billion, four hundred seventy-five million, four hundred fifty-five thousand, seventy-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 729 972 1458 2187 2916 4374 8748 2340587 4681174 7021761 9362348 14043522 21065283 28087044 42130566 63195849 84261132 126391698 189587547 252783396 379175094 568762641 758350188 1137525282 1706287923 2275050564 3412575846 5118863769 6825151692 10237727538 20475455076