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52858988 = 22713197643
BaseRepresentation
bin1100100110100…
…1000001101100
310200110111220022
43021221001230
5102012441423
65124541312
71211202560
oct311510154
9120414808
1052858988
1127923816
1215851838
13ac49810
14703d6a0
154991dc8
hex326906c

52858988 has 48 divisors (see below), whose sum is σ = 119857920. Its totient is φ = 19808064.

The previous prime is 52858987. The next prime is 52859011. The reversal of 52858988 is 88985825.

It is a happy number.

It is a super-2 number, since 2×528589882 = 5588145224768288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52858987) 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, 3095 + ... + 10737.

It is an arithmetic number, because the mean of its divisors is an integer number (2497040).

Almost surely, 252858988 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 52858988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59928960).

52858988 is an abundant number, since it is smaller than the sum of its proper divisors (66998932).

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

52858988 is a wasteful number, since it uses less digits than its factorization.

52858988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686 (or 7684 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 53.

The square root of 52858988 is about 7270.4186949584. The cubic root of 52858988 is about 375.2951466046.

The spelling of 52858988 in words is "fifty-two million, eight hundred fifty-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 13 14 19 26 28 38 52 76 91 133 182 247 266 364 494 532 988 1729 3458 6916 7643 15286 30572 53501 99359 107002 145217 198718 214004 290434 397436 580868 695513 1016519 1391026 1887821 2033038 2782052 3775642 4066076 7551284 13214747 26429494 52858988