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52472851 = 192761729
BaseRepresentation
bin1100100000101…
…0110000010011
310122201220012221
43020022300103
5101413112401
65112401511
71205004034
oct310126023
9118656187
1052472851
112768a6a2
12156a6297
13ab42b32
146d7ca8b
1549177a1
hex320ac13

52472851 has 4 divisors (see below), whose sum is σ = 55234600. Its totient is φ = 49711104.

The previous prime is 52472837. The next prime is 52472873. The reversal of 52472851 is 15827425.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52472851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52472551) 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, 1380846 + ... + 1380883.

It is an arithmetic number, because the mean of its divisors is an integer number (13808650).

Almost surely, 252472851 is an apocalyptic number.

52472851 is a deficient number, since it is larger than the sum of its proper divisors (2761749).

52472851 is a wasteful number, since it uses less digits than its factorization.

52472851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761748.

The product of its digits is 22400, while the sum is 34.

The square root of 52472851 is about 7243.8146718425. The cubic root of 52472851 is about 374.3790636616.

The spelling of 52472851 in words is "fifty-two million, four hundred seventy-two thousand, eight hundred fifty-one".

Divisors: 1 19 2761729 52472851