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52009384 = 2372196983
BaseRepresentation
bin1100011001100…
…1100110101000
310121212100110111
43012121212220
5101303300014
65054424104
71201033600
oct306314650
9117770414
1052009384
11273a3469
1215502034
13aa0cbab
146c9bc00
1548752c4
hex31999a8

52009384 has 48 divisors (see below), whose sum is σ = 119426400. Its totient is φ = 21113568.

The previous prime is 52009381. The next prime is 52009387. The reversal of 52009384 is 48390025.

It is an interprime number because it is at equal distance from previous prime (52009381) and next prime (52009387).

It is not an unprimeable number, because it can be changed into a prime (52009381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3957 + ... + 10939.

It is an arithmetic number, because the mean of its divisors is an integer number (2488050).

Almost surely, 252009384 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 52009384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59713200).

52009384 is an abundant number, since it is smaller than the sum of its proper divisors (67417016).

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

52009384 is a wasteful number, since it uses less digits than its factorization.

52009384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022 (or 7011 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 52009384 is about 7211.7531849059. The cubic root of 52009384 is about 373.2735668214.

The spelling of 52009384 in words is "fifty-two million, nine thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 19 28 38 49 56 76 98 133 152 196 266 392 532 931 1064 1862 3724 6983 7448 13966 27932 48881 55864 97762 132677 195524 265354 342167 391048 530708 684334 928739 1061416 1368668 1857478 2737336 3714956 6501173 7429912 13002346 26004692 52009384