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52423511 = 73127793
BaseRepresentation
bin1100011111111…
…0101101010111
310122122101112112
43013332231113
5101410023021
65111341235
71204410140
oct307765527
9118571475
1052423511
1127656618
121568181b
13ab2653a
146d68ac7
154907d5b
hex31feb57

52423511 has 12 divisors (see below), whose sum is σ = 61915536. Its totient is φ = 43479360.

The previous prime is 52423507. The next prime is 52423513. The reversal of 52423511 is 11532425.

It is not a de Polignac number, because 52423511 - 22 = 52423507 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 (52423513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2831 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (5159628).

Almost surely, 252423511 is an apocalyptic number.

52423511 is a deficient number, since it is larger than the sum of its proper divisors (9492025).

52423511 is an equidigital number, since it uses as much as digits as its factorization.

52423511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7862 (or 7831 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 52423511 is about 7240.4082067243. The cubic root of 52423511 is about 374.2616845131.

Adding to 52423511 its reverse (11532425), we get a palindrome (63955936).

The spelling of 52423511 in words is "fifty-two million, four hundred twenty-three thousand, five hundred eleven".

Divisors: 1 7 31 217 961 6727 7793 54551 241583 1691081 7489073 52423511