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10081279 = 133720959
BaseRepresentation
bin100110011101…
…001111111111
3200222011220201
4212131033333
510040100104
61000024331
7151455325
oct46351777
920864821
1010081279
11576623a
1234620a7
13211c870
1414a5d15
15d420a4
hex99d3ff

10081279 has 8 divisors (see below), whose sum is σ = 11150720. Its totient is φ = 9053856.

The previous prime is 10081277. The next prime is 10081303. The reversal of 10081279 is 97218001.

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 10081279 - 21 = 10081277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10081277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9999 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (1393840).

Almost surely, 210081279 is an apocalyptic number.

10081279 is a deficient number, since it is larger than the sum of its proper divisors (1069441).

10081279 is a wasteful number, since it uses less digits than its factorization.

10081279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21009.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 10081279 is about 3175.1029904556. The cubic root of 10081279 is about 216.0255956751.

The spelling of 10081279 in words is "ten million, eighty-one thousand, two hundred seventy-nine".

Divisors: 1 13 37 481 20959 272467 775483 10081279