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25384968 = 23337103163
BaseRepresentation
bin110000011010…
…1100000001000
31202202200122000
41200311200020
522444304333
62304031000
7425524440
oct140654010
952680560
1025384968
1113369114
128602460
13534a4bb
14352b120
152366713
hex1835808

25384968 has 128 divisors (see below), whose sum is σ = 81868800. Its totient is φ = 7138368.

The previous prime is 25384963. The next prime is 25384987. The reversal of 25384968 is 86948352.

It is a super-2 number, since 2×253849682 = 1288793200722048, which contains 22 as substring.

Its product of digits (414720) is a multiple of the sum of its prime factors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25384963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155655 + ... + 155817.

It is an arithmetic number, because the mean of its divisors is an integer number (639600).

Almost surely, 225384968 is an apocalyptic number.

25384968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25384968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40934400).

25384968 is an abundant number, since it is smaller than the sum of its proper divisors (56483832).

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

25384968 is a wasteful number, since it uses less digits than its factorization.

25384968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 278 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 25384968 is about 5038.3497298223. The cubic root of 25384968 is about 293.8950062407.

The spelling of 25384968 in words is "twenty-five million, three hundred eighty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 103 108 126 163 168 189 206 216 252 309 326 378 412 489 504 618 652 721 756 824 927 978 1141 1236 1304 1442 1467 1512 1854 1956 2163 2282 2472 2781 2884 2934 3423 3708 3912 4326 4401 4564 5562 5768 5868 6489 6846 7416 8652 8802 9128 10269 11124 11736 12978 13692 16789 17304 17604 19467 20538 22248 25956 27384 30807 33578 35208 38934 41076 50367 51912 61614 67156 77868 82152 100734 117523 123228 134312 151101 155736 201468 235046 246456 302202 352569 402936 453303 470092 604404 705138 906606 940184 1057707 1208808 1410276 1813212 2115414 2820552 3173121 3626424 4230828 6346242 8461656 12692484 25384968