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11257146 = 232625397
BaseRepresentation
bin101010111100…
…010100111010
3210011220220100
4222330110322
510340212041
61041140230
7164453445
oct52742472
923156810
1011257146
11639972a
12392a676
132441b44
1416d065c
15ec56b6
hexabc53a

11257146 has 12 divisors (see below), whose sum is σ = 24390522. Its totient is φ = 3752376.

The previous prime is 11257109. The next prime is 11257151. The reversal of 11257146 is 64175211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 68121 = 3345^2 + 261^2 .

It is an unprimeable number.

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, 312681 + ... + 312716.

Almost surely, 211257146 is an apocalyptic number.

11257146 is an abundant number, since it is smaller than the sum of its proper divisors (13133376).

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

11257146 is a wasteful number, since it uses less digits than its factorization.

11257146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625405 (or 625402 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 11257146 is about 3355.1670599241. The cubic root of 11257146 is about 224.1176704244.

The spelling of 11257146 in words is "eleven million, two hundred fifty-seven thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 625397 1250794 1876191 3752382 5628573 11257146