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52118838 = 23217243233
BaseRepresentation
bin1100011011010…
…0010100110110
310122001220121100
43012310110312
5101320300323
65101030530
71202000652
oct306642466
9118056540
1052118838
1127468722
1215555446
13aa4a965
146cc9a62
154897943
hex31b4536

52118838 has 72 divisors (see below), whose sum is σ = 123274008. Its totient is φ = 15902208.

The previous prime is 52118813. The next prime is 52118839. The reversal of 52118838 is 83881125.

52118838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52118839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223570 + ... + 223802.

It is an arithmetic number, because the mean of its divisors is an integer number (1712139).

Almost surely, 252118838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52118838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61637004).

52118838 is an abundant number, since it is smaller than the sum of its proper divisors (71155170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52118838 is a wasteful number, since it uses less digits than its factorization.

52118838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 298 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 52118838 is about 7219.3377812650. The cubic root of 52118838 is about 373.5352353548.

The spelling of 52118838 in words is "fifty-two million, one hundred eighteen thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 17 18 34 43 51 86 102 129 153 233 258 289 306 387 466 578 699 731 774 867 1398 1462 1734 2097 2193 2601 3961 4194 4386 5202 6579 7922 10019 11883 12427 13158 20038 23766 24854 30057 35649 37281 60114 67337 71298 74562 90171 111843 134674 170323 180342 202011 223686 340646 404022 510969 606033 1021938 1212066 1532907 2895491 3065814 5790982 8686473 17372946 26059419 52118838