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52187061 = 347370121
BaseRepresentation
bin1100011100010…
…0111110110101
310122012101012010
43013010332311
5101324441221
65102314433
71202403603
oct307047665
9118171163
1052187061
1127504a03
1215588a19
13aa72a24
146d06873
1548acc76
hex31c4fb5

52187061 has 8 divisors (see below), whose sum is σ = 71063424. Its totient is φ = 34051040.

The previous prime is 52187041. The next prime is 52187071. The reversal of 52187061 is 16078125.

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

It is a cyclic number.

It is not a de Polignac number, because 52187061 - 25 = 52187029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52187041) 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, 184920 + ... + 185201.

It is an arithmetic number, because the mean of its divisors is an integer number (8882928).

Almost surely, 252187061 is an apocalyptic number.

It is an amenable number.

52187061 is a deficient number, since it is larger than the sum of its proper divisors (18876363).

52187061 is a wasteful number, since it uses less digits than its factorization.

52187061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370171.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 52187061 is about 7224.0612538931. The cubic root of 52187061 is about 373.6981488305.

The spelling of 52187061 in words is "fifty-two million, one hundred eighty-seven thousand, sixty-one".

Divisors: 1 3 47 141 370121 1110363 17395687 52187061