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52915969 = 192785051
BaseRepresentation
bin1100100111011…
…0111100000001
310200120102001201
43021312330001
5102021302334
65130101201
71211530651
oct311667401
9120512051
1052915969
1127962607
121587a801
13ac69732
147056361
1549a3c14
hex3276f01

52915969 has 4 divisors (see below), whose sum is σ = 55701040. Its totient is φ = 50130900.

The previous prime is 52915963. The next prime is 52915991. The reversal of 52915969 is 96951925.

52915969 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52915969 is a prime.

It is a super-2 number, since 2×529159692 = 5600199550417922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52915963) 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, 1392507 + ... + 1392544.

It is an arithmetic number, because the mean of its divisors is an integer number (13925260).

Almost surely, 252915969 is an apocalyptic number.

It is an amenable number.

52915969 is a deficient number, since it is larger than the sum of its proper divisors (2785071).

52915969 is a wasteful number, since it uses less digits than its factorization.

52915969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785070.

The product of its digits is 218700, while the sum is 46.

The square root of 52915969 is about 7274.3363271160. The cubic root of 52915969 is about 375.4299518923.

The spelling of 52915969 in words is "fifty-two million, nine hundred fifteen thousand, nine hundred sixty-nine".

Divisors: 1 19 2785051 52915969