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28126652 = 2220273469
BaseRepresentation
bin110101101001…
…0110110111100
31221220222111212
41223102312330
524200023102
62442503552
7461033621
oct153226674
957828455
1028126652
1114970a74
129504bb8
135a9a3b8
143a42348
152708c52
hex1ad2dbc

28126652 has 12 divisors (see below), whose sum is σ = 49260120. Its totient is φ = 14052336.

The previous prime is 28126649. The next prime is 28126661. The reversal of 28126652 is 25662182.

It is a super-2 number, since 2×281266522 = 1582217105458208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6374 + ... + 9842.

It is an arithmetic number, because the mean of its divisors is an integer number (4105010).

Almost surely, 228126652 is an apocalyptic number.

It is an amenable number.

28126652 is a deficient number, since it is larger than the sum of its proper divisors (21133468).

28126652 is a wasteful number, since it uses less digits than its factorization.

28126652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500 (or 5498 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 28126652 is about 5303.4566086657. The cubic root of 28126652 is about 304.1160539126.

The spelling of 28126652 in words is "twenty-eight million, one hundred twenty-six thousand, six hundred fifty-two".

Divisors: 1 2 4 2027 3469 4054 6938 8108 13876 7031663 14063326 28126652