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52040757 = 3171020407
BaseRepresentation
bin1100011010000…
…1010000110101
310121220221111110
43012201100311
5101310301012
65055225233
71201224216
oct306412065
9117827443
1052040757
1127414a9a
1215518219
13aa21262
146ca940d
15487e73c
hex31a1435

52040757 has 8 divisors (see below), whose sum is σ = 73469376. Its totient is φ = 32652992.

The previous prime is 52040749. The next prime is 52040777. The reversal of 52040757 is 75704025.

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 52040757 - 23 = 52040749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52040777) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 510153 + ... + 510254.

It is an arithmetic number, because the mean of its divisors is an integer number (9183672).

Almost surely, 252040757 is an apocalyptic number.

It is an amenable number.

52040757 is a deficient number, since it is larger than the sum of its proper divisors (21428619).

52040757 is a wasteful number, since it uses less digits than its factorization.

52040757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020427.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 52040757 is about 7213.9279868876. The cubic root of 52040757 is about 373.3486068546.

The spelling of 52040757 in words is "fifty-two million, forty thousand, seven hundred fifty-seven".

Divisors: 1 3 17 51 1020407 3061221 17346919 52040757