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10938889 = 131967661
BaseRepresentation
bin101001101110…
…101000001001
3202120202100001
4221232220021
510300021024
61030243001
7161656543
oct51565011
922522301
1010938889
1161a1605
1237b6461
132360020
14164a693
15e61244
hexa6ea09

10938889 has 16 divisors (see below), whose sum is σ = 12604480. Its totient is φ = 9408960.

The previous prime is 10938853. The next prime is 10938911. The reversal of 10938889 is 98883901.

It is a cyclic number.

It is not a de Polignac number, because 10938889 - 215 = 10906121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10938839) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16219 + ... + 16879.

It is an arithmetic number, because the mean of its divisors is an integer number (787780).

Almost surely, 210938889 is an apocalyptic number.

10938889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10938889 is a deficient number, since it is larger than the sum of its proper divisors (1665591).

10938889 is a wasteful number, since it uses less digits than its factorization.

10938889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 10938889 is about 3307.3991292253. The cubic root of 10938889 is about 221.9853965991.

The spelling of 10938889 in words is "ten million, nine hundred thirty-eight thousand, eight hundred eighty-nine".

Divisors: 1 13 19 67 247 661 871 1273 8593 12559 16549 44287 163267 575731 841453 10938889