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52188895 = 5111755817
BaseRepresentation
bin1100011100010…
…1011011011111
310122012110201001
43013011123133
5101330021040
65102331131
71202412133
oct307053337
9118173631
1052188895
1127506320
1215589aa7
13aa73805
146d073c3
1548ad59a
hex31c56df

52188895 has 16 divisors (see below), whose sum is σ = 72340128. Its totient is φ = 35722240.

The previous prime is 52188883. The next prime is 52188911. The reversal of 52188895 is 59888125.

It is not a de Polignac number, because 52188895 - 27 = 52188767 is a prime.

It is a super-2 number, since 2×521888952 = 5447361522642050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26974 + ... + 28843.

It is an arithmetic number, because the mean of its divisors is an integer number (4521258).

Almost surely, 252188895 is an apocalyptic number.

52188895 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

52188895 is a deficient number, since it is larger than the sum of its proper divisors (20151233).

52188895 is a wasteful number, since it uses less digits than its factorization.

52188895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55850.

The product of its digits is 230400, while the sum is 46.

The square root of 52188895 is about 7224.1881896861. The cubic root of 52188895 is about 373.7025263803.

The spelling of 52188895 in words is "fifty-two million, one hundred eighty-eight thousand, eight hundred ninety-five".

Divisors: 1 5 11 17 55 85 187 935 55817 279085 613987 948889 3069935 4744445 10437779 52188895