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54787892 = 2213696973
BaseRepresentation
bin1101000011111…
…1111100110100
310211002111212012
43100333330310
5103011203032
65234143352
71233455315
oct320777464
9124074765
1054787892
1128a20a55
1216421b58
13b473793
1473c260c
154c236b2
hex343ff34

54787892 has 6 divisors (see below), whose sum is σ = 95878818. Its totient is φ = 27393944.

The previous prime is 54787883. The next prime is 54787913. The reversal of 54787892 is 29878745.

It can be written as a sum of positive squares in only one way, i.e., 52215076 + 2572816 = 7226^2 + 1604^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54787892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6848483 + ... + 6848490.

It is an arithmetic number, because the mean of its divisors is an integer number (15979803).

Almost surely, 254787892 is an apocalyptic number.

It is an amenable number.

54787892 is a deficient number, since it is larger than the sum of its proper divisors (41090926).

54787892 is a wasteful number, since it uses less digits than its factorization.

54787892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13696977 (or 13696975 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 54787892 is about 7401.8843546762. The cubic root of 54787892 is about 379.8057455902.

The spelling of 54787892 in words is "fifty-four million, seven hundred eighty-seven thousand, eight hundred ninety-two".

Divisors: 1 2 4 13696973 27393946 54787892