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11053431 = 321228159
BaseRepresentation
bin101010001010…
…100101110111
3202210120110100
4222022211313
510312202211
61032525143
7162644514
oct52124567
922716410
1011053431
11626a674
1238507b3
1323a01bc
14167a30b
15e85156
hexa8a977

11053431 has 6 divisors (see below), whose sum is σ = 15966080. Its totient is φ = 7368948.

The previous prime is 11053411. The next prime is 11053433. The reversal of 11053431 is 13435011.

It is not a de Polignac number, because 11053431 - 29 = 11052919 is a prime.

It is a super-2 number, since 2×110534312 = 244356673743522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11053433) 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, 614071 + ... + 614088.

Almost surely, 211053431 is an apocalyptic number.

11053431 is a deficient number, since it is larger than the sum of its proper divisors (4912649).

11053431 is a wasteful number, since it uses less digits than its factorization.

11053431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228165 (or 1228162 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 11053431 is about 3324.6700588179. The cubic root of 11053431 is about 222.7575169309.

Adding to 11053431 its reverse (13435011), we get a palindrome (24488442).

The spelling of 11053431 in words is "eleven million, fifty-three thousand, four hundred thirty-one".

Divisors: 1 3 9 1228159 3684477 11053431