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25050642 = 2331313339
BaseRepresentation
bin101111110001…
…1111000010010
31202010201000120
41133203320102
522403110032
62252531110
7422632641
oct137437022
952121016
1025050642
111315aa11
128480a96
135261286
143481358
1522ec62c
hex17e3e12

25050642 has 16 divisors (see below), whose sum is σ = 50265120. Its totient is φ = 8322912.

The previous prime is 25050629. The next prime is 25050653. The reversal of 25050642 is 24605052.

It is a super-2 number, since 2×250506422 = 1255069329224328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4792 + ... + 8547.

It is an arithmetic number, because the mean of its divisors is an integer number (3141570).

Almost surely, 225050642 is an apocalyptic number.

25050642 is an abundant number, since it is smaller than the sum of its proper divisors (25214478).

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

25050642 is a wasteful number, since it uses less digits than its factorization.

25050642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13657.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25050642 is about 5005.0616379821. The cubic root of 25050642 is about 292.5990781311.

Adding to 25050642 its reverse (24605052), we get a palindrome (49655694).

The spelling of 25050642 in words is "twenty-five million, fifty thousand, six hundred forty-two".

Divisors: 1 2 3 6 313 626 939 1878 13339 26678 40017 80034 4175107 8350214 12525321 25050642