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52494845 = 513807613
BaseRepresentation
bin1100100001000…
…0000111111101
310122210000101112
43020100013331
5101414313340
65113051405
71205125124
oct310200775
9118700345
1052494845
11276a5177
12156b6b65
13ab4cb50
146d86abb
15491e065
hex32101fd

52494845 has 8 divisors (see below), whose sum is σ = 67839576. Its totient is φ = 38765376.

The previous prime is 52494803. The next prime is 52494847. The reversal of 52494845 is 54849425.

It can be written as a sum of positive squares in 4 ways, for example, as 337561 + 52157284 = 581^2 + 7222^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52494845 - 222 = 48300541 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 (52494847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403742 + ... + 403871.

It is an arithmetic number, because the mean of its divisors is an integer number (8479947).

Almost surely, 252494845 is an apocalyptic number.

It is an amenable number.

52494845 is a deficient number, since it is larger than the sum of its proper divisors (15344731).

52494845 is a wasteful number, since it uses less digits than its factorization.

52494845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807631.

The product of its digits is 230400, while the sum is 41.

The square root of 52494845 is about 7245.3326355662. The cubic root of 52494845 is about 374.4313633607.

The spelling of 52494845 in words is "fifty-two million, four hundred ninety-four thousand, eight hundred forty-five".

Divisors: 1 5 13 65 807613 4038065 10498969 52494845