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28425052 = 2212975479
BaseRepresentation
bin110110001101…
…1101101011100
31222111010211201
41230123231130
524234100202
62453125244
7463415605
oct154335534
958433751
1028425052
1115055187
129629824
135b73176
143abcdac
152767387
hex1b1bb5c

28425052 has 12 divisors (see below), whose sum is σ = 49791280. Its totient is φ = 14198976.

The previous prime is 28425049. The next prime is 28425053. The reversal of 28425052 is 25052482.

It is a self number, because there is not a number n which added to its sum of digits gives 28425052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28425053) 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, 2449 + ... + 7927.

Almost surely, 228425052 is an apocalyptic number.

It is an amenable number.

28425052 is a deficient number, since it is larger than the sum of its proper divisors (21366228).

28425052 is a wasteful number, since it uses less digits than its factorization.

28425052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780 (or 6778 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 28425052 is about 5331.5149816914. The cubic root of 28425052 is about 305.1877443036.

The spelling of 28425052 in words is "twenty-eight million, four hundred twenty-five thousand, fifty-two".

Divisors: 1 2 4 1297 2594 5188 5479 10958 21916 7106263 14212526 28425052