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10890169 = 12298861
BaseRepresentation
bin101001100010…
…101110111001
3202111021111121
4221202232321
510241441134
61025225241
7161364523
oct51425671
922437447
1010890169
116168a44
123792221
132343ab4
141636a13
15e51ab4
hexa62bb9

10890169 has 4 divisors (see below), whose sum is σ = 10900260. Its totient is φ = 10880080.

The previous prime is 10890163. The next prime is 10890179. The reversal of 10890169 is 96109801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10758400 + 131769 = 3280^2 + 363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10890169 is a prime.

It is a super-2 number, since 2×108901692 = 237191561697122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10890163) 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 3 ways as a sum of consecutive naturals, for example, 3202 + ... + 5659.

It is an arithmetic number, because the mean of its divisors is an integer number (2725065).

Almost surely, 210890169 is an apocalyptic number.

It is an amenable number.

10890169 is a deficient number, since it is larger than the sum of its proper divisors (10091).

10890169 is an equidigital number, since it uses as much as digits as its factorization.

10890169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10090.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 10890169 is about 3300.0256059613. The cubic root of 10890169 is about 221.6553440489.

The spelling of 10890169 in words is "ten million, eight hundred ninety thousand, one hundred sixty-nine".

Divisors: 1 1229 8861 10890169