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52087136 = 251627723
BaseRepresentation
bin1100011010110…
…0100101100000
310122000022010012
43012230211200
5101313242021
65100224052
71201506353
oct306544540
9118008105
1052087136
1127446922
121553b028
13aa393ba
146cbc29a
15488d35b
hex31ac960

52087136 has 12 divisors (see below), whose sum is σ = 102546612. Its totient is φ = 26043552.

The previous prime is 52087127. The next prime is 52087141. The reversal of 52087136 is 63178025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 1627723 = 52087136 / (5 + 2 + 0 + 8 + 7 + 1 + 3 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813830 + ... + 813893.

It is an arithmetic number, because the mean of its divisors is an integer number (8545551).

Almost surely, 252087136 is an apocalyptic number.

It is an amenable number.

52087136 is a deficient number, since it is larger than the sum of its proper divisors (50459476).

52087136 is a wasteful number, since it uses less digits than its factorization.

52087136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627733 (or 1627725 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 52087136 is about 7217.1418165365. The cubic root of 52087136 is about 373.4594840124.

The spelling of 52087136 in words is "fifty-two million, eighty-seven thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 32 1627723 3255446 6510892 13021784 26043568 52087136