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52115115 = 35131779199
BaseRepresentation
bin1100011011001…
…1011010101011
310122001201111110
43012303122223
5101320140430
65101001403
71201654053
oct306633253
9118051443
1052115115
1127465948
1215553263
13aa49060
146cc8563
1548967b0
hex31b36ab

52115115 has 64 divisors (see below), whose sum is σ = 96768000. Its totient is φ = 23721984.

The previous prime is 52115111. The next prime is 52115177. The reversal of 52115115 is 51151125.

It is not a de Polignac number, because 52115115 - 22 = 52115111 is a prime.

It is a super-2 number, since 2×521151152 = 5431970422926450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52115091 and 52115100.

It is not an unprimeable number, because it can be changed into a prime (52115111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 261786 + ... + 261984.

It is an arithmetic number, because the mean of its divisors is an integer number (1512000).

Almost surely, 252115115 is an apocalyptic number.

52115115 is a deficient number, since it is larger than the sum of its proper divisors (44652885).

52115115 is a wasteful number, since it uses less digits than its factorization.

52115115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316.

The product of its digits is 250, while the sum is 21.

The square root of 52115115 is about 7219.0799275254. The cubic root of 52115115 is about 373.5263409074.

The spelling of 52115115 in words is "fifty-two million, one hundred fifteen thousand, one hundred fifteen".

Divisors: 1 3 5 13 15 17 39 51 65 79 85 195 199 221 237 255 395 597 663 995 1027 1105 1185 1343 2587 2985 3081 3315 3383 4029 5135 6715 7761 10149 12935 15405 15721 16915 17459 20145 38805 43979 47163 50745 52377 78605 87295 131937 204373 219895 235815 261885 267257 613119 659685 801771 1021865 1336285 3065595 3474341 4008855 10423023 17371705 52115115