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54863768172 = 2234571980681
BaseRepresentation
bin110011000110001000…
…101010101001101100
312020121112212012020210
4303012020222221230
51344330111040142
641112024542420
73651401222613
oct630610525154
9166545765223
1054863768172
11212a4192074
12a771921a10
135234610465
14292668c87a
15166188b49c
hexcc622aa6c

54863768172 has 12 divisors (see below), whose sum is σ = 128015459096. Its totient is φ = 18287922720.

The previous prime is 54863768149. The next prime is 54863768189. The reversal of 54863768172 is 27186736845.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2285990329 + ... + 2285990352.

Almost surely, 254863768172 is an apocalyptic number.

It is an amenable number.

54863768172 is an abundant number, since it is smaller than the sum of its proper divisors (73151690924).

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

54863768172 is a wasteful number, since it uses less digits than its factorization.

54863768172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571980688 (or 4571980686 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 54863768172 in words is "fifty-four billion, eight hundred sixty-three million, seven hundred sixty-eight thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 12 4571980681 9143961362 13715942043 18287922724 27431884086 54863768172