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52683618 = 23131921871
BaseRepresentation
bin1100100011111…
…0001101100010
310200010121100010
43020332031202
5101441333433
65121105350
71206542361
oct310761542
9120117303
1052683618
1127813a89
1215788256
13abb7a50
146dd57d8
154959e63
hex323e362

52683618 has 48 divisors (see below), whose sum is σ = 119822976. Its totient is φ = 15348960.

The previous prime is 52683611. The next prime is 52683619. The reversal of 52683618 is 81638625.

It is a happy number.

52683618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (52683611) 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 23 ways as a sum of consecutive naturals, for example, 27223 + ... + 29093.

It is an arithmetic number, because the mean of its divisors is an integer number (2496312).

Almost surely, 252683618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52683618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59911488).

52683618 is an abundant number, since it is smaller than the sum of its proper divisors (67139358).

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

52683618 is a wasteful number, since it uses less digits than its factorization.

52683618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927 (or 1908 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 52683618 is about 7258.3481591888. The cubic root of 52683618 is about 374.8796484899.

It can be divided in two parts, 52683 and 618, that added together give a triangular number (53301 = T326).

The spelling of 52683618 in words is "fifty-two million, six hundred eighty-three thousand, six hundred eighteen".

Divisors: 1 2 3 6 13 19 26 38 39 57 78 114 247 361 494 722 741 1083 1482 1871 2166 3742 4693 5613 9386 11226 14079 24323 28158 35549 48646 71098 72969 106647 145938 213294 462137 675431 924274 1350862 1386411 2026293 2772822 4052586 8780603 17561206 26341809 52683618