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10379981 = 89223523
BaseRepresentation
bin100111100110…
…001011001101
3201112100122202
4213212023031
510124124411
61010251245
7154141223
oct47461315
921470582
1010379981
11594a6a7
123586b25
1321c5801
141542b13
15da083b
hex9e62cd

10379981 has 8 divisors (see below), whose sum is σ = 10563840. Its totient is φ = 10197792.

The previous prime is 10379959. The next prime is 10379983. The reversal of 10379981 is 18997301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10379981 - 218 = 10117837 is a prime.

It is a super-2 number, since 2×103799812 = 215488011120722, 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 (10379983) 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 7 ways as a sum of consecutive naturals, for example, 19586 + ... + 20108.

It is an arithmetic number, because the mean of its divisors is an integer number (1320480).

Almost surely, 210379981 is an apocalyptic number.

It is an amenable number.

10379981 is a deficient number, since it is larger than the sum of its proper divisors (183859).

10379981 is an equidigital number, since it uses as much as digits as its factorization.

10379981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 10379981 is about 3221.7977900545. The cubic root of 10379981 is about 218.1384315613.

The spelling of 10379981 in words is "ten million, three hundred seventy-nine thousand, nine hundred eighty-one".

Divisors: 1 89 223 523 19847 46547 116629 10379981