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25874028 = 2232718723
BaseRepresentation
bin110001010110…
…0111001101100
31210200112111100
41202230321230
523110432103
62322323100
7432632325
oct142547154
953615440
1025874028
11136725a4
1287b9490
13548bc9b
14361744c
1524115a3
hex18ace6c

25874028 has 18 divisors (see below), whose sum is σ = 65403884. Its totient is φ = 8624664.

The previous prime is 25874027. The next prime is 25874039. The reversal of 25874028 is 82047852.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 718723 = 25874028 / (2 + 5 + 8 + 7 + 4 + 0 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 25873983 and 25874001.

It is not an unprimeable number, because it can be changed into a prime (25874027) 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 5 ways as a sum of consecutive naturals, for example, 359326 + ... + 359397.

Almost surely, 225874028 is an apocalyptic number.

It is an amenable number.

25874028 is an abundant number, since it is smaller than the sum of its proper divisors (39529856).

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

25874028 is a wasteful number, since it uses less digits than its factorization.

25874028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718733 (or 718728 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 25874028 is about 5086.6519440591. The cubic root of 25874028 is about 295.7703813327.

The spelling of 25874028 in words is "twenty-five million, eight hundred seventy-four thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 718723 1437446 2156169 2874892 4312338 6468507 8624676 12937014 25874028