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25157214 = 2321678369
BaseRepresentation
bin101111111110…
…1111001011110
31202100010012200
41133331321132
522420012324
62255112330
7423555435
oct137757136
952303180
1025157214
1113222a95
1285126a6
13529a934
1434ac11c
15231dec9
hex17fde5e

25157214 has 24 divisors (see below), whose sum is σ = 54840240. Its totient is φ = 8334528.

The previous prime is 25157207. The next prime is 25157219. The reversal of 25157214 is 41275152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25157219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1179 + ... + 7190.

It is an arithmetic number, because the mean of its divisors is an integer number (2285010).

Almost surely, 225157214 is an apocalyptic number.

25157214 is an abundant number, since it is smaller than the sum of its proper divisors (29683026).

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

25157214 is a wasteful number, since it uses less digits than its factorization.

25157214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8544 (or 8541 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 25157214 is about 5015.6967611689. The cubic root of 25157214 is about 293.0134221779.

The spelling of 25157214 in words is "twenty-five million, one hundred fifty-seven thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 167 334 501 1002 1503 3006 8369 16738 25107 50214 75321 150642 1397623 2795246 4192869 8385738 12578607 25157214