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52119810 = 2325737933
BaseRepresentation
bin1100011011010…
…0100100000010
310122001221221100
43012310210002
5101320313220
65101035230
71202003541
oct306644402
9118057840
1052119810
1127469426
1215555b16
13aa4b232
146cca158
154897d90
hex31b4902

52119810 has 48 divisors (see below), whose sum is σ = 137385144. Its totient is φ = 13706496.

The previous prime is 52119799. The next prime is 52119811. The reversal of 52119810 is 1891125.

It can be written as a sum of positive squares in 4 ways, for example, as 38303721 + 13816089 = 6189^2 + 3717^2 .

It is a super-2 number, since 2×521198102 = 5432949188872200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52119811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2604 + ... + 10536.

Almost surely, 252119810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52119810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68692572).

52119810 is an abundant number, since it is smaller than the sum of its proper divisors (85265334).

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

52119810 is a wasteful number, since it uses less digits than its factorization.

52119810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8019 (or 8016 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 52119810 is about 7219.4051001450. The cubic root of 52119810 is about 373.5375574454.

The spelling of 52119810 in words is "fifty-two million, one hundred nineteen thousand, eight hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 73 90 146 219 365 438 657 730 1095 1314 2190 3285 6570 7933 15866 23799 39665 47598 71397 79330 118995 142794 237990 356985 579109 713970 1158218 1737327 2895545 3474654 5211981 5791090 8686635 10423962 17373270 26059905 52119810