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53842863 = 317947621
BaseRepresentation
bin1100110101100…
…1001110101111
310202022111112010
43031121032233
5102240432423
65202012303
71222441164
oct315311657
9122274463
1053842863
1128435a38
1216047093
13b2025a9
14721806b
154ad8693
hex33593af

53842863 has 4 divisors (see below), whose sum is σ = 71790488. Its totient is φ = 35895240.

The previous prime is 53842861. The next prime is 53842889. The reversal of 53842863 is 36824835.

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

It is not a de Polignac number, because 53842863 - 21 = 53842861 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 (53842861) 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, 8973808 + ... + 8973813.

It is an arithmetic number, because the mean of its divisors is an integer number (17947622).

Almost surely, 253842863 is an apocalyptic number.

53842863 is a deficient number, since it is larger than the sum of its proper divisors (17947625).

53842863 is a wasteful number, since it uses less digits than its factorization.

53842863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17947624.

The product of its digits is 138240, while the sum is 39.

The square root of 53842863 is about 7337.7696202593. The cubic root of 53842863 is about 377.6093287421.

The spelling of 53842863 in words is "fifty-three million, eight hundred forty-two thousand, eight hundred sixty-three".

Divisors: 1 3 17947621 53842863