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53370893 = 295718049
BaseRepresentation
bin1100101110011…
…0000000001101
310201102112002202
43023212000031
5102130332033
65143531245
71215434162
oct313460015
9121375082
1053370893
1128143384
1215a59b25
13b098814
147134069
154a438e8
hex32e600d

53370893 has 4 divisors (see below), whose sum is σ = 53391900. Its totient is φ = 53349888.

The previous prime is 53370881. The next prime is 53370901. The reversal of 53370893 is 39807335.

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 28590409 + 24780484 = 5347^2 + 4978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53370893 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 (53370193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6068 + ... + 11981.

It is an arithmetic number, because the mean of its divisors is an integer number (13347975).

Almost surely, 253370893 is an apocalyptic number.

It is an amenable number.

53370893 is a deficient number, since it is larger than the sum of its proper divisors (21007).

53370893 is a wasteful number, since it uses less digits than its factorization.

53370893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21006.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 53370893 is about 7305.5385154005. The cubic root of 53370893 is about 376.5027533165.

The spelling of 53370893 in words is "fifty-three million, three hundred seventy thousand, eight hundred ninety-three".

Divisors: 1 2957 18049 53370893