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20325708 = 22331331467
BaseRepresentation
bin100110110001…
…0010101001100
31102020122122000
41031202111030
520200410313
62003352300
7334523424
oct115422514
942218560
1020325708
1110523007
126982690
134298760
1429b1484
151bb7673
hex136254c

20325708 has 96 divisors (see below), whose sum is σ = 58705920. Its totient is φ = 6039360.

The previous prime is 20325707. The next prime is 20325733. The reversal of 20325708 is 80752302.

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

It is not an unprimeable number, because it can be changed into a prime (20325707) 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 31 ways as a sum of consecutive naturals, for example, 43291 + ... + 43757.

It is an arithmetic number, because the mean of its divisors is an integer number (611520).

Almost surely, 220325708 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 20325708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29352960).

20325708 is an abundant number, since it is smaller than the sum of its proper divisors (38380212).

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

20325708 is a wasteful number, since it uses less digits than its factorization.

20325708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20325708 is about 4508.4041522472. The cubic root of 20325708 is about 272.9073468941.

The spelling of 20325708 in words is "twenty million, three hundred twenty-five thousand, seven hundred eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 31 36 39 52 54 62 78 93 108 117 124 156 186 234 279 351 372 403 467 468 558 702 806 837 934 1116 1209 1401 1404 1612 1674 1868 2418 2802 3348 3627 4203 4836 5604 6071 7254 8406 10881 12142 12609 14477 14508 16812 18213 21762 24284 25218 28954 36426 43431 43524 50436 54639 57908 72852 86862 109278 130293 163917 173724 188201 218556 260586 327834 376402 390879 521172 564603 655668 752804 781758 1129206 1563516 1693809 2258412 3387618 5081427 6775236 10162854 20325708