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52391241 = 3272118801
BaseRepresentation
bin1100011111011…
…0110101001001
310122120202021100
43013312311021
5101403004431
65110532013
71204214100
oct307666511
9118522240
1052391241
1127634351
1215667009
13ab14946
146d5b037
1548ed4e6
hex31f6d49

52391241 has 18 divisors (see below), whose sum is σ = 88032282. Its totient is φ = 29937600.

The previous prime is 52391237. The next prime is 52391281. The reversal of 52391241 is 14219325.

It can be written as a sum of positive squares in only one way, i.e., 34574400 + 17816841 = 5880^2 + 4221^2 .

It is not a de Polignac number, because 52391241 - 22 = 52391237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52391221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 58960 + ... + 59841.

Almost surely, 252391241 is an apocalyptic number.

It is an amenable number.

52391241 is a deficient number, since it is larger than the sum of its proper divisors (35641041).

52391241 is a wasteful number, since it uses less digits than its factorization.

52391241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118821 (or 118811 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 52391241 is about 7238.1793981636. The cubic root of 52391241 is about 374.1848748062.

The spelling of 52391241 in words is "fifty-two million, three hundred ninety-one thousand, two hundred forty-one".

Divisors: 1 3 7 9 21 49 63 147 441 118801 356403 831607 1069209 2494821 5821249 7484463 17463747 52391241