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52015608 = 2338991
BaseRepresentation
bin1100011001101…
…1000111111000
310121212200000000
43012123013320
5101303444413
65054513000
71201061001
oct306330770
9117780000
1052015608
11273a8107
1215505760
13aa12988
146ca01a8
154877073
hex319b1f8

52015608 has 72 divisors (see below), whose sum is σ = 146434080. Its totient is φ = 17321040.

The previous prime is 52015591. The next prime is 52015637. The reversal of 52015608 is 80651025.

52015608 is a `hidden beast` number, since 52 + 0 + 1 + 5 + 608 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51993 + ... + 52983.

Almost surely, 252015608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52015608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73217040).

52015608 is an abundant number, since it is smaller than the sum of its proper divisors (94418472).

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

52015608 is an frugal number, since it uses more digits than its factorization.

52015608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 52015608 is about 7212.1846898149. The cubic root of 52015608 is about 373.2884561987.

The spelling of 52015608 in words is "fifty-two million, fifteen thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 729 972 991 1458 1944 1982 2187 2916 2973 3964 4374 5832 5946 6561 7928 8748 8919 11892 13122 17496 17838 23784 26244 26757 35676 52488 53514 71352 80271 107028 160542 214056 240813 321084 481626 642168 722439 963252 1444878 1926504 2167317 2889756 4334634 5779512 6501951 8669268 13003902 17338536 26007804 52015608