Search a number
-
+
10031300321 = 71433042903
BaseRepresentation
bin10010101011110100…
…10111111011100001
3221220002122212002112
421111322113323201
5131021003102241
64335221325105
7503404434350
oct112572277341
927802585075
1010031300321
114288453449
121b3b566795
13c3b329283
146b238d997
153da9e21eb
hex255e97ee1

10031300321 has 4 divisors (see below), whose sum is σ = 11464343232. Its totient is φ = 8598257412.

The previous prime is 10031300311. The next prime is 10031300333. The reversal of 10031300321 is 12300313001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10031300321 is a prime.

It is a super-2 number, since 2×100313003212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10031300296 and 10031300305.

It is not an unprimeable number, because it can be changed into a prime (10031300311) 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, 716521445 + ... + 716521458.

It is an arithmetic number, because the mean of its divisors is an integer number (2866085808).

Almost surely, 210031300321 is an apocalyptic number.

It is an amenable number.

10031300321 is a deficient number, since it is larger than the sum of its proper divisors (1433042911).

10031300321 is an equidigital number, since it uses as much as digits as its factorization.

10031300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433042910.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 10031300321 its reverse (12300313001), we get a palindrome (22331613322).

The spelling of 10031300321 in words is "ten billion, thirty-one million, three hundred thousand, three hundred twenty-one".

Divisors: 1 7 1433042903 10031300321