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54836149 = 154935401
BaseRepresentation
bin1101000100101…
…1101110110101
310211011222001111
43101023232311
5103014224044
65235155021
71234046104
oct321135665
9124158044
1054836149
1128a54235
1216445a71
13b48c734
1473d603b
154c32b34
hex344bbb5

54836149 has 4 divisors (see below), whose sum is σ = 54873100. Its totient is φ = 54799200.

The previous prime is 54836143. The next prime is 54836153. The reversal of 54836149 is 94163845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14577124 + 40259025 = 3818^2 + 6345^2 .

It is a cyclic number.

It is not a de Polignac number, because 54836149 - 23 = 54836141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54836141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16152 + ... + 19249.

It is an arithmetic number, because the mean of its divisors is an integer number (13718275).

Almost surely, 254836149 is an apocalyptic number.

It is an amenable number.

54836149 is a deficient number, since it is larger than the sum of its proper divisors (36951).

54836149 is a wasteful number, since it uses less digits than its factorization.

54836149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36950.

The product of its digits is 103680, while the sum is 40.

The square root of 54836149 is about 7405.1434152216. The cubic root of 54836149 is about 379.9172234287.

The spelling of 54836149 in words is "fifty-four million, eight hundred thirty-six thousand, one hundred forty-nine".

Divisors: 1 1549 35401 54836149