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25920048 = 2437117013
BaseRepresentation
bin110001011100…
…0001000110000
31210202212121210
41202320020300
523113420143
62323320120
7433213440
oct142701060
953685553
1025920048
11136a4130
128820040
1354a6c0b
14362a120
152420033
hex18b8230

25920048 has 80 divisors (see below), whose sum is σ = 83494656. Its totient is φ = 6731520.

The previous prime is 25920031. The next prime is 25920079. The reversal of 25920048 is 84002952.

It is a junction number, because it is equal to n+sod(n) for n = 25919997 and 25920024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190 + ... + 7202.

Almost surely, 225920048 is an apocalyptic number.

25920048 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 25920048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41747328).

25920048 is an abundant number, since it is smaller than the sum of its proper divisors (57574608).

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

25920048 is a wasteful number, since it uses less digits than its factorization.

25920048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042 (or 7036 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 25920048 is about 5091.1735385862. The cubic root of 25920048 is about 295.9456316019.

The spelling of 25920048 in words is "twenty-five million, nine hundred twenty thousand, forty-eight".

Divisors: 1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 33 42 44 48 56 66 77 84 88 112 132 154 168 176 231 264 308 336 462 528 616 924 1232 1848 3696 7013 14026 21039 28052 42078 49091 56104 77143 84156 98182 112208 147273 154286 168312 196364 231429 294546 308572 336624 392728 462858 540001 589092 617144 785456 925716 1080002 1178184 1234288 1620003 1851432 2160004 2356368 3240006 3702864 4320008 6480012 8640016 12960024 25920048