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25332980 = 2251498501
BaseRepresentation
bin110000010100…
…0110011110100
31202200001022112
41200220303310
522441123410
62302550152
7425220041
oct140506364
952601275
1025332980
1113333052
128598358
13532c93a
1435161c8
152356105
hex1828cf4

25332980 has 24 divisors (see below), whose sum is σ = 53562600. Its totient is φ = 10064000.

The previous prime is 25332943. The next prime is 25332991. The reversal of 25332980 is 8923352.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 24820324 = 716^2 + 4982^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 7230.

It is an arithmetic number, because the mean of its divisors is an integer number (2231775).

Almost surely, 225332980 is an apocalyptic number.

25332980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25332980 is an abundant number, since it is smaller than the sum of its proper divisors (28229620).

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

25332980 is a wasteful number, since it uses less digits than its factorization.

25332980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659 (or 8657 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 25332980 is about 5033.1878566173. The cubic root of 25332980 is about 293.6942383971.

It can be divided in two parts, 253 and 32980, that added together give a palindrome (33233).

The spelling of 25332980 in words is "twenty-five million, three hundred thirty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 8501 17002 34004 42505 85010 170020 1266649 2533298 5066596 6333245 12666490 25332980