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10013000321 = 93710686233
BaseRepresentation
bin10010101001101001…
…00100001010000001
3221211211020010012202
421110310210022001
5131001312002241
64333325202545
7503063045522
oct112464441201
927754203182
1010013000321
114279094385
121b35400455
13c375bc87c
146adb88849
153d90c9d9b
hex254d24281

10013000321 has 4 divisors (see below), whose sum is σ = 10023687492. Its totient is φ = 10002313152.

The previous prime is 10013000299. The next prime is 10013000351. The reversal of 10013000321 is 12300031001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1282714225 + 8730286096 = 35815^2 + 93436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10013000321 is a prime.

It is a super-2 number, since 2×100130003212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10013000351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5342180 + ... + 5344053.

It is an arithmetic number, because the mean of its divisors is an integer number (2505921873).

Almost surely, 210013000321 is an apocalyptic number.

It is an amenable number.

10013000321 is a deficient number, since it is larger than the sum of its proper divisors (10687171).

10013000321 is an equidigital number, since it uses as much as digits as its factorization.

10013000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687170.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10013000321 its reverse (12300031001), we get a palindrome (22313031322).

The spelling of 10013000321 in words is "ten billion, thirteen million, three hundred twenty-one", and thus it is an aban number.

Divisors: 1 937 10686233 10013000321