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53187079 = 116772167
BaseRepresentation
bin1100101011100…
…1001000000111
310201002011221211
43022321020013
5102103441304
65135552251
71214040241
oct312711007
9121064854
1053187079
1128028270
121598b687
13b032c5a
1470c7091
154a09204
hex32b9207

53187079 has 8 divisors (see below), whose sum is σ = 58889088. Its totient is φ = 47629560.

The previous prime is 53187077. The next prime is 53187089. The reversal of 53187079 is 97078135.

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

It is not a de Polignac number, because 53187079 - 21 = 53187077 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 (53187077) 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, 35347 + ... + 36820.

It is an arithmetic number, because the mean of its divisors is an integer number (7361136).

Almost surely, 253187079 is an apocalyptic number.

53187079 is a deficient number, since it is larger than the sum of its proper divisors (5702009).

53187079 is a wasteful number, since it uses less digits than its factorization.

53187079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72245.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 53187079 is about 7292.9472094620. The cubic root of 53187079 is about 376.0700200630.

The spelling of 53187079 in words is "fifty-three million, one hundred eighty-seven thousand, seventy-nine".

Divisors: 1 11 67 737 72167 793837 4835189 53187079