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11889025 = 523712853
BaseRepresentation
bin101101010110…
…100110000001
3211101000200021
4231112212001
511020422100
61102453441
7203024611
oct55264601
924330607
1011889025
116790445
123b94281
132603635
141816a41
15109ca1a
hexb56981

11889025 has 12 divisors (see below), whose sum is σ = 15142012. Its totient is φ = 9253440.

The previous prime is 11889011. The next prime is 11889037. The reversal of 11889025 is 52098811.

It can be written as a sum of positive squares in 6 ways, for example, as 27889 + 11861136 = 167^2 + 3444^2 .

It is a de Polignac number, because none of the positive numbers 2k-11889025 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5502 + ... + 7351.

Almost surely, 211889025 is an apocalyptic number.

It is an amenable number.

11889025 is a deficient number, since it is larger than the sum of its proper divisors (3252987).

11889025 is a wasteful number, since it uses less digits than its factorization.

11889025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12900 (or 12895 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 11889025 is about 3448.0465484097. The cubic root of 11889025 is about 228.2349135690.

The spelling of 11889025 in words is "eleven million, eight hundred eighty-nine thousand, twenty-five".

Divisors: 1 5 25 37 185 925 12853 64265 321325 475561 2377805 11889025