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52453013 = 371417649
BaseRepresentation
bin1100100000010…
…1111010010101
310122200220000012
43020011322111
5101411444023
65112130005
71204562144
oct310057225
9118626005
1052453013
11276767a8
1215696905
13ab36ab2
146d7575b
154911978
hex3205e95

52453013 has 4 divisors (see below), whose sum is σ = 53870700. Its totient is φ = 51035328.

The previous prime is 52453001. The next prime is 52453019. The reversal of 52453013 is 31035425.

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 19298449 + 33154564 = 4393^2 + 5758^2 .

It is a cyclic number.

It is not a de Polignac number, because 52453013 - 212 = 52448917 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 52453013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52453019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708788 + ... + 708861.

It is an arithmetic number, because the mean of its divisors is an integer number (13467675).

Almost surely, 252453013 is an apocalyptic number.

It is an amenable number.

52453013 is a deficient number, since it is larger than the sum of its proper divisors (1417687).

52453013 is a wasteful number, since it uses less digits than its factorization.

52453013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417686.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 52453013 is about 7242.4452362445. The cubic root of 52453013 is about 374.3318781941.

Adding to 52453013 its reverse (31035425), we get a palindrome (83488438).

The spelling of 52453013 in words is "fifty-two million, four hundred fifty-three thousand, thirteen".

Divisors: 1 37 1417649 52453013