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53228479 = 173131087
BaseRepresentation
bin1100101100001…
…1001110111111
310201011021202011
43023003032333
5102111302404
65140512051
71214302033
oct313031677
9121137664
1053228479
1128056387
12159ab627
13b048a55
1470d81c3
154a16604
hex32c33bf

53228479 has 4 divisors (see below), whose sum is σ = 56359584. Its totient is φ = 50097376.

The previous prime is 53228477. The next prime is 53228489. The reversal of 53228479 is 97482235.

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

It is a cyclic number.

It is not a de Polignac number, because 53228479 - 21 = 53228477 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 (53228477) 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, 1565527 + ... + 1565560.

It is an arithmetic number, because the mean of its divisors is an integer number (14089896).

Almost surely, 253228479 is an apocalyptic number.

53228479 is a deficient number, since it is larger than the sum of its proper divisors (3131105).

53228479 is a wasteful number, since it uses less digits than its factorization.

53228479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131104.

The product of its digits is 120960, while the sum is 40.

The square root of 53228479 is about 7295.7850160212. The cubic root of 53228479 is about 376.1675704533.

The spelling of 53228479 in words is "fifty-three million, two hundred twenty-eight thousand, four hundred seventy-nine".

Divisors: 1 17 3131087 53228479