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54937513 = 291894397
BaseRepresentation
bin1101000110010…
…0011110101001
310211101010002201
43101210132221
5103031000023
65241300201
71234650451
oct321443651
9124333081
1054937513
1129013404
1216494661
13b4c6907
147420d61
154c52bad
hex34647a9

54937513 has 4 divisors (see below), whose sum is σ = 56831940. Its totient is φ = 53043088.

The previous prime is 54937511. The next prime is 54937517. The reversal of 54937513 is 31573945.

54937513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 30603024 + 24334489 = 5532^2 + 4933^2 .

It is not a de Polignac number, because 54937513 - 21 = 54937511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54937511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947170 + ... + 947227.

It is an arithmetic number, because the mean of its divisors is an integer number (14207985).

Almost surely, 254937513 is an apocalyptic number.

It is an amenable number.

54937513 is a deficient number, since it is larger than the sum of its proper divisors (1894427).

54937513 is a wasteful number, since it uses less digits than its factorization.

54937513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894426.

The product of its digits is 56700, while the sum is 37.

The square root of 54937513 is about 7411.9844171450. The cubic root of 54937513 is about 380.1511702326.

The spelling of 54937513 in words is "fifty-four million, nine hundred thirty-seven thousand, five hundred thirteen".

Divisors: 1 29 1894397 54937513