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25340680 = 2351933343
BaseRepresentation
bin110000010101…
…0101100001000
31202200102212201
41200222230020
522441400210
62303045544
7425251351
oct140525410
952612781
1025340680
1113338912
1285a08b4
1353332b1
143518d28
15235853a
hex182ab08

25340680 has 32 divisors (see below), whose sum is σ = 60019200. Its totient is φ = 9602496.

The previous prime is 25340639. The next prime is 25340683. The reversal of 25340680 is 8604352.

It is not an unprimeable number, because it can be changed into a prime (25340683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15912 + ... + 17431.

It is an arithmetic number, because the mean of its divisors is an integer number (1875600).

Almost surely, 225340680 is an apocalyptic number.

25340680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25340680 is an abundant number, since it is smaller than the sum of its proper divisors (34678520).

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

25340680 is a wasteful number, since it uses less digits than its factorization.

25340680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33373 (or 33369 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 25340680 is about 5033.9527212718. The cubic root of 25340680 is about 293.7239916614.

The spelling of 25340680 in words is "twenty-five million, three hundred forty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 33343 66686 133372 166715 266744 333430 633517 666860 1267034 1333720 2534068 3167585 5068136 6335170 12670340 25340680