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25242132 = 2232391457
BaseRepresentation
bin110000001001…
…0101000010100
31202111102200210
41200102220110
522430222012
62301005420
7424361136
oct140225024
952442623
1025242132
1113280873
128553870
1352ca496
1434d1056
15233923c
hex1812a14

25242132 has 24 divisors (see below), whose sum is σ = 61459776. Its totient is φ = 8048128.

The previous prime is 25242131. The next prime is 25242137. The reversal of 25242132 is 23124252.

It is a junction number, because it is equal to n+sod(n) for n = 25242099 and 25242108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242131) 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, 45453 + ... + 46004.

It is an arithmetic number, because the mean of its divisors is an integer number (2560824).

Almost surely, 225242132 is an apocalyptic number.

It is an amenable number.

25242132 is an abundant number, since it is smaller than the sum of its proper divisors (36217644).

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

25242132 is a wasteful number, since it uses less digits than its factorization.

25242132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91487 (or 91485 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 25242132 is about 5024.1548543014. The cubic root of 25242132 is about 293.3427401712.

Adding to 25242132 its reverse (23124252), we get a palindrome (48366384).

It can be divided in two parts, 2524 and 2132, that added together give a triangular number (4656 = T96).

The spelling of 25242132 in words is "twenty-five million, two hundred forty-two thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 91457 182914 274371 365828 548742 1097484 2103511 4207022 6310533 8414044 12621066 25242132