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52115049 = 337275741
BaseRepresentation
bin1100011011001…
…1011001101001
310122001201102000
43012303121221
5101320140144
65101001213
71201653630
oct306633151
9118051360
1052115049
1127465898
1215553209
13aa4900c
146cc8517
154896769
hex31b3669

52115049 has 16 divisors (see below), whose sum is σ = 88237440. Its totient is φ = 29779920.

The previous prime is 52115029. The next prime is 52115053. The reversal of 52115049 is 94051125.

It is not a de Polignac number, because 52115049 - 25 = 52115017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52115029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137682 + ... + 138059.

It is an arithmetic number, because the mean of its divisors is an integer number (5514840).

Almost surely, 252115049 is an apocalyptic number.

It is an amenable number.

52115049 is a deficient number, since it is larger than the sum of its proper divisors (36122391).

52115049 is a wasteful number, since it uses less digits than its factorization.

52115049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275757 (or 275751 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 52115049 is about 7219.0753563043. The cubic root of 52115049 is about 373.5261832260.

The spelling of 52115049 in words is "fifty-two million, one hundred fifteen thousand, forty-nine".

Divisors: 1 3 7 9 21 27 63 189 275741 827223 1930187 2481669 5790561 7445007 17371683 52115049