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10879421 = 72222029
BaseRepresentation
bin101001100000…
…000110111101
3202110201202112
4221200012331
510241120141
61025103405
7161321300
oct51400675
922421675
1010879421
116160963
123787b65
13233bc37
141632b37
15e4d7eb
hexa601bd

10879421 has 6 divisors (see below), whose sum is σ = 12655710. Its totient is φ = 9325176.

The previous prime is 10879403. The next prime is 10879447. The reversal of 10879421 is 12497801.

It can be written as a sum of positive squares in only one way, i.e., 6528025 + 4351396 = 2555^2 + 2086^2 .

It is not a de Polignac number, because 10879421 - 222 = 6685117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10879471) 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 5 ways as a sum of consecutive naturals, for example, 110966 + ... + 111063.

It is an arithmetic number, because the mean of its divisors is an integer number (2109285).

Almost surely, 210879421 is an apocalyptic number.

It is an amenable number.

10879421 is a deficient number, since it is larger than the sum of its proper divisors (1776289).

10879421 is an equidigital number, since it uses as much as digits as its factorization.

10879421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222043 (or 222036 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 10879421 is about 3298.3967317471. The cubic root of 10879421 is about 221.5823994871.

The spelling of 10879421 in words is "ten million, eight hundred seventy-nine thousand, four hundred twenty-one".

Divisors: 1 7 49 222029 1554203 10879421