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25068740 = 2251253437
BaseRepresentation
bin101111110100…
…0010011000100
31202011121211212
41133220103010
522404144430
62253150552
7423036464
oct137502304
952147755
1025068740
1113172574
12848b458
135269598
143487ba4
152302b95
hex17e84c4

25068740 has 12 divisors (see below), whose sum is σ = 52644396. Its totient is φ = 10027488.

The previous prime is 25068737. The next prime is 25068763. The reversal of 25068740 is 4786052.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 18267076 = 2608^2 + 4274^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25068697 and 25068706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626699 + ... + 626738.

It is an arithmetic number, because the mean of its divisors is an integer number (4387033).

Almost surely, 225068740 is an apocalyptic number.

25068740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25068740 is an abundant number, since it is smaller than the sum of its proper divisors (27575656).

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

25068740 is a wasteful number, since it uses less digits than its factorization.

25068740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253446 (or 1253444 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 25068740 is about 5006.8692812974. The cubic root of 25068740 is about 292.6695245410.

The spelling of 25068740 in words is "twenty-five million, sixty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1253437 2506874 5013748 6267185 12534370 25068740