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52015938 = 2313666871
BaseRepresentation
bin1100011001101…
…1001101000010
310121212200110020
43012123031002
5101304002223
65054514310
71201061652
oct306331502
9117780406
1052015938
11273a8387
1215505996
13aa12b80
146ca0362
1548771e3
hex319b342

52015938 has 16 divisors (see below), whose sum is σ = 112034496. Its totient is φ = 16004880.

The previous prime is 52015933. The next prime is 52015963. The reversal of 52015938 is 83951025.

It is a junction number, because it is equal to n+sod(n) for n = 52015899 and 52015908.

It is not an unprimeable number, because it can be changed into a prime (52015933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333358 + ... + 333513.

It is an arithmetic number, because the mean of its divisors is an integer number (7002156).

Almost surely, 252015938 is an apocalyptic number.

52015938 is an abundant number, since it is smaller than the sum of its proper divisors (60018558).

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

52015938 is a wasteful number, since it uses less digits than its factorization.

52015938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666889.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 52015938 is about 7212.2075677285. The cubic root of 52015938 is about 373.2892456087.

The spelling of 52015938 in words is "fifty-two million, fifteen thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 666871 1333742 2000613 4001226 8669323 17338646 26007969 52015938