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52118817 = 347369637
BaseRepresentation
bin1100011011010…
…0010100100001
310122001220120120
43012310110201
5101320300232
65101030453
71202000622
oct306642441
9118056516
1052118817
1127468703
1215555429
13aa4a94a
146cc9a49
15489792c
hex31b4521

52118817 has 8 divisors (see below), whose sum is σ = 70970496. Its totient is φ = 34006512.

The previous prime is 52118813. The next prime is 52118839. The reversal of 52118817 is 71881125.

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

It is not a de Polignac number, because 52118817 - 22 = 52118813 is a prime.

It is a super-3 number, since 3×521188173 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (52118813) 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, 184678 + ... + 184959.

It is an arithmetic number, because the mean of its divisors is an integer number (8871312).

Almost surely, 252118817 is an apocalyptic number.

It is an amenable number.

52118817 is a deficient number, since it is larger than the sum of its proper divisors (18851679).

52118817 is a wasteful number, since it uses less digits than its factorization.

52118817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369687.

The product of its digits is 4480, while the sum is 33.

The square root of 52118817 is about 7219.3363268378. The cubic root of 52118817 is about 373.5351851859.

It can be divided in two parts, 5211 and 8817, that added together give a triangular number (14028 = T167).

The spelling of 52118817 in words is "fifty-two million, one hundred eighteen thousand, eight hundred seventeen".

Divisors: 1 3 47 141 369637 1108911 17372939 52118817