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25882940 = 2251968113
BaseRepresentation
bin110001010111…
…1000100111100
31210200222201102
41202233010330
523111223230
62322432232
7433000316
oct142570474
953628642
1025882940
1113679266
128802678
135493065
14361a7b6
152414045
hex18af13c

25882940 has 24 divisors (see below), whose sum is σ = 57215760. Its totient is φ = 9808128.

The previous prime is 25882919. The next prime is 25882949. The reversal of 25882940 is 4928852.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 25882894 and 25882903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25882949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33677 + ... + 34436.

It is an arithmetic number, because the mean of its divisors is an integer number (2383990).

Almost surely, 225882940 is an apocalyptic number.

25882940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25882940 is an abundant number, since it is smaller than the sum of its proper divisors (31332820).

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

25882940 is a wasteful number, since it uses less digits than its factorization.

25882940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68141 (or 68139 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 25882940 is about 5087.5278869015. The cubic root of 25882940 is about 295.8043356267.

The spelling of 25882940 in words is "twenty-five million, eight hundred eighty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 68113 136226 272452 340565 681130 1294147 1362260 2588294 5176588 6470735 12941470 25882940