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53472737 = 311724927
BaseRepresentation
bin1100101111111…
…0110111100001
310201121200210202
43023332313201
5102142111422
65150034545
71216340123
oct313766741
9121550722
1053472737
112820294a
1215aa8a55
13b102c96
14715d213
154a63b92
hex32fede1

53472737 has 4 divisors (see below), whose sum is σ = 55197696. Its totient is φ = 51747780.

The previous prime is 53472721. The next prime is 53472739. The reversal of 53472737 is 73727435.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53472737 - 24 = 53472721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53472737.

It is not an unprimeable number, because it can be changed into a prime (53472739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862433 + ... + 862494.

It is an arithmetic number, because the mean of its divisors is an integer number (13799424).

Almost surely, 253472737 is an apocalyptic number.

It is an amenable number.

53472737 is a deficient number, since it is larger than the sum of its proper divisors (1724959).

53472737 is a wasteful number, since it uses less digits than its factorization.

53472737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724958.

The product of its digits is 123480, while the sum is 38.

The square root of 53472737 is about 7312.5055213654. The cubic root of 53472737 is about 376.7420859065.

The spelling of 53472737 in words is "fifty-three million, four hundred seventy-two thousand, seven hundred thirty-seven".

Divisors: 1 31 1724927 53472737