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54886381 = 1130716253
BaseRepresentation
bin1101000101011…
…1111111101101
310211021111221221
43101113333231
5103022331011
65240223341
71234345414
oct321277755
9124244857
1054886381
1128a88a50
121646ab51
13b4a9564
14740a47b
154c42971
hex3457fed

54886381 has 8 divisors (see below), whose sum is σ = 60074784. Its totient is φ = 49731120.

The previous prime is 54886327. The next prime is 54886393. The reversal of 54886381 is 18368845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54886381 - 27 = 54886253 is a prime.

It is a super-2 number, since 2×548863812 = 6025029638554322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54886681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4750 + ... + 11503.

It is an arithmetic number, because the mean of its divisors is an integer number (7509348).

Almost surely, 254886381 is an apocalyptic number.

It is an amenable number.

54886381 is a deficient number, since it is larger than the sum of its proper divisors (5188403).

54886381 is a wasteful number, since it uses less digits than its factorization.

54886381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16571.

The product of its digits is 184320, while the sum is 43.

The square root of 54886381 is about 7408.5343354809. The cubic root of 54886381 is about 380.0331942379.

The spelling of 54886381 in words is "fifty-four million, eight hundred eighty-six thousand, three hundred eighty-one".

Divisors: 1 11 307 3377 16253 178783 4989671 54886381