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54765081 = 3272413607
BaseRepresentation
bin1101000011101…
…0011000011001
310211001100120100
43100322120121
5103004440311
65233450013
71233331650
oct320723031
9124040510
1054765081
1128a058a8
1216410909
13b466297
1473b8197
154c1ba56
hex343a619

54765081 has 24 divisors (see below), whose sum is σ = 90806144. Its totient is φ = 31155840.

The previous prime is 54765077. The next prime is 54765089. The reversal of 54765081 is 18056745.

It is not a de Polignac number, because 54765081 - 22 = 54765077 is a prime.

It is a super-2 number, since 2×547650812 = 5998428193873122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54765089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13380 + ... + 16986.

Almost surely, 254765081 is an apocalyptic number.

It is an amenable number.

54765081 is a deficient number, since it is larger than the sum of its proper divisors (36041063).

54765081 is a wasteful number, since it uses less digits than its factorization.

54765081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861 (or 3858 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 54765081 is about 7400.3433028475. The cubic root of 54765081 is about 379.7530274244.

The spelling of 54765081 in words is "fifty-four million, seven hundred sixty-five thousand, eighty-one".

Divisors: 1 3 7 9 21 63 241 723 1687 2169 3607 5061 10821 15183 25249 32463 75747 227241 869287 2607861 6085009 7823583 18255027 54765081