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25242768 = 2432307571
BaseRepresentation
bin110000001001…
…0110010010000
31202111110120100
41200102302100
522430232033
62301012400
7424363035
oct140226220
952443510
1025242768
11132812a1
128554100
1352ca865
1434d138c
152339513
hex1812c90

25242768 has 60 divisors (see below), whose sum is σ = 70998928. Its totient is φ = 8372160.

The previous prime is 25242709. The next prime is 25242779. The reversal of 25242768 is 86724252.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43923 + ... + 44493.

Almost surely, 225242768 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 25242768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35499464).

25242768 is an abundant number, since it is smaller than the sum of its proper divisors (45756160).

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

25242768 is a wasteful number, since it uses less digits than its factorization.

25242768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 883 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 25242768 is about 5024.2181481301. The cubic root of 25242768 is about 293.3452038355.

The spelling of 25242768 in words is "twenty-five million, two hundred forty-two thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 307 571 614 921 1142 1228 1713 1842 2284 2456 2763 3426 3684 4568 4912 5139 5526 6852 7368 9136 10278 11052 13704 14736 20556 22104 27408 41112 44208 82224 175297 350594 525891 701188 1051782 1402376 1577673 2103564 2804752 3155346 4207128 6310692 8414256 12621384 25242768