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25914940 = 2251295747
BaseRepresentation
bin110001011011…
…0111000111100
31210202121121121
41202312320330
523113234230
62323240324
7433162522
oct142667074
953677547
1025914940
11136a0307
1288190a4
1354a47ac
143628312
15241d77a
hex18b6e3c

25914940 has 12 divisors (see below), whose sum is σ = 54421416. Its totient is φ = 10365968.

The previous prime is 25914937. The next prime is 25914943. The reversal of 25914940 is 4941952.

It is an interprime number because it is at equal distance from previous prime (25914937) and next prime (25914943).

It is a junction number, because it is equal to n+sod(n) for n = 25914896 and 25914905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25914943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647854 + ... + 647893.

It is an arithmetic number, because the mean of its divisors is an integer number (4535118).

Almost surely, 225914940 is an apocalyptic number.

25914940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25914940 is an abundant number, since it is smaller than the sum of its proper divisors (28506476).

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

25914940 is a wasteful number, since it uses less digits than its factorization.

25914940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295756 (or 1295754 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 25914940 is about 5090.6718613558. The cubic root of 25914940 is about 295.9261898993.

The spelling of 25914940 in words is "twenty-five million, nine hundred fourteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1295747 2591494 5182988 6478735 12957470 25914940