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25082490 = 2354717789
BaseRepresentation
bin101111110101…
…1101001111010
31202012022201010
41133223221322
522410114430
62253334350
7423124536
oct137535172
952168633
1025082490
1113181934
1284973b6
135272914
14348cbc6
152306cb0
hex17eba7a

25082490 has 32 divisors (see below), whose sum is σ = 61482240. Its totient is φ = 6545984.

The previous prime is 25082483. The next prime is 25082501. The reversal of 25082490 is 9428052.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7485 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (1921320).

Almost surely, 225082490 is an apocalyptic number.

25082490 is an abundant number, since it is smaller than the sum of its proper divisors (36399750).

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

25082490 is a wasteful number, since it uses less digits than its factorization.

25082490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17846.

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

The square root of 25082490 is about 5008.2422066030. The cubic root of 25082490 is about 292.7230237122.

The spelling of 25082490 in words is "twenty-five million, eighty-two thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 17789 35578 53367 88945 106734 177890 266835 533670 836083 1672166 2508249 4180415 5016498 8360830 12541245 25082490