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10031332331 = 61164448071
BaseRepresentation
bin10010101011110100…
…11111101111101011
3221220002201111000002
421111322133233223
5131021010113311
64335222133215
7503404626566
oct112572375753
927802644002
1010031332331
1142884754a9
121b3b58120b
13c3b33aa07
146b239b4dd
153da9eb93b
hex255e9fbeb

10031332331 has 4 divisors (see below), whose sum is σ = 10195780464. Its totient is φ = 9866884200.

The previous prime is 10031332327. The next prime is 10031332349. The reversal of 10031332331 is 13323313001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13323313001 = 73182511137.

It is not a de Polignac number, because 10031332331 - 22 = 10031332327 is a prime.

It is a super-2 number, since 2×100313323312 (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 (10031332351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82223975 + ... + 82224096.

It is an arithmetic number, because the mean of its divisors is an integer number (2548945116).

Almost surely, 210031332331 is an apocalyptic number.

10031332331 is a deficient number, since it is larger than the sum of its proper divisors (164448133).

10031332331 is an equidigital number, since it uses as much as digits as its factorization.

10031332331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164448132.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 10031332331 its reverse (13323313001), we get a palindrome (23354645332).

The spelling of 10031332331 in words is "ten billion, thirty-one million, three hundred thirty-two thousand, three hundred thirty-one".

Divisors: 1 61 164448071 10031332331