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52118580 = 22354320201
BaseRepresentation
bin1100011011010…
…0010000110100
310122001220020210
43012310100310
5101320243310
65101025420
71202000133
oct306642064
9118056223
1052118580
1127468508
1215555270
13aa4a7c7
146cc991a
154897820
hex31b4434

52118580 has 48 divisors (see below), whose sum is σ = 149333184. Its totient is φ = 13574400.

The previous prime is 52118579. The next prime is 52118581. The reversal of 52118580 is 8581125.

It is an interprime number because it is at equal distance from previous prime (52118579) and next prime (52118581).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52118581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7521 + ... + 12680.

It is an arithmetic number, because the mean of its divisors is an integer number (3111108).

Almost surely, 252118580 is an apocalyptic number.

It is an amenable number.

52118580 is an abundant number, since it is smaller than the sum of its proper divisors (97214604).

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

52118580 is a wasteful number, since it uses less digits than its factorization.

52118580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20256 (or 20254 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 52118580 is about 7219.3199125679. The cubic root of 52118580 is about 373.5346189926.

The spelling of 52118580 in words is "fifty-two million, one hundred eighteen thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 20201 40402 60603 80804 101005 121206 202010 242412 303015 404020 606030 868643 1212060 1737286 2605929 3474572 4343215 5211858 8686430 10423716 13029645 17372860 26059290 52118580