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20548848068 = 2271494925419
BaseRepresentation
bin10011001000110011…
…101000100111000100
31222001002021122020222
4103020303220213010
5314041001114233
613235013043512
71325135220020
oct231063504704
958032248228
1020548848068
11879531a771
123b95926598
131c263039c8
14dcd155380
15804032898
hex4c8ce89c4

20548848068 has 24 divisors (see below), whose sum is σ = 41373528000. Its totient is φ = 8747542368.

The previous prime is 20548848049. The next prime is 20548848083. The reversal of 20548848068 is 86084884502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2458538 + ... + 2466881.

It is an arithmetic number, because the mean of its divisors is an integer number (1723897000).

Almost surely, 220548848068 is an apocalyptic number.

20548848068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20548848068 is an abundant number, since it is smaller than the sum of its proper divisors (20824679932).

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

20548848068 is a wasteful number, since it uses less digits than its factorization.

20548848068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925579 (or 4925577 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 53.

The spelling of 20548848068 in words is "twenty billion, five hundred forty-eight million, eight hundred forty-eight thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 149 298 596 1043 2086 4172 4925419 9850838 19701676 34477933 68955866 137911732 733887431 1467774862 2935549724 5137212017 10274424034 20548848068