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52740331 = 731359677
BaseRepresentation
bin1100100100110…
…0000011101011
310200020111010121
43021030003223
5102000142311
65122224111
71210166620
oct311140353
9120214117
1052740331
1127852656
12157b5037
13ac077c7
14700c347
15496bb71
hex324c0eb

52740331 has 16 divisors (see below), whose sum is σ = 62484480. Its totient is φ = 43561440.

The previous prime is 52740329. The next prime is 52740349. The reversal of 52740331 is 13304725.

It is a cyclic number.

It is not a de Polignac number, because 52740331 - 21 = 52740329 is a prime.

It is a super-2 number, since 2×527403312 = 5563085027979122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52740296 and 52740305.

It is not an unprimeable number, because it can be changed into a prime (52740361) 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, 77565 + ... + 78241.

It is an arithmetic number, because the mean of its divisors is an integer number (3905280).

Almost surely, 252740331 is an apocalyptic number.

52740331 is a deficient number, since it is larger than the sum of its proper divisors (9744149).

52740331 is a wasteful number, since it uses less digits than its factorization.

52740331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 52740331 is about 7262.2538512503. The cubic root of 52740331 is about 375.0141173945.

The spelling of 52740331 in words is "fifty-two million, seven hundred forty thousand, three hundred thirty-one".

Divisors: 1 7 31 217 359 677 2513 4739 11129 20987 77903 146909 243043 1701301 7534333 52740331