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10021319 = 711130147
BaseRepresentation
bin100110001110…
…100111000111
3200212010122222
4212032213013
510031140234
6554442555
7151115450
oct46164707
920763588
1010021319
115725190
12343345b
1320cb499
14148c127
15d2e42e
hex98e9c7

10021319 has 8 divisors (see below), whose sum is σ = 12494208. Its totient is φ = 7808760.

The previous prime is 10021301. The next prime is 10021331. The reversal of 10021319 is 91312001.

It is a happy number.

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 10021319 - 212 = 10017223 is a prime.

It is a super-2 number, since 2×100213192 = 200853668999522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021297 and 10021306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021519) 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, 64997 + ... + 65150.

It is an arithmetic number, because the mean of its divisors is an integer number (1561776).

Almost surely, 210021319 is an apocalyptic number.

10021319 is a deficient number, since it is larger than the sum of its proper divisors (2472889).

10021319 is a wasteful number, since it uses less digits than its factorization.

10021319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130165.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 10021319 is about 3165.6466953847. The cubic root of 10021319 is about 215.5964616435.

The spelling of 10021319 in words is "ten million, twenty-one thousand, three hundred nineteen".

Divisors: 1 7 11 77 130147 911029 1431617 10021319