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103302313031 = 199915167441
BaseRepresentation
bin110000000110101001…
…1000011010001000111
3100212122022112020002202
41200031103003101013
53143030343004111
6115242331025115
710314633113201
oct1401523032107
9325568466082
10103302313031
113a8a050a825
121802b89b19b
139983a21818
144ddd87d771
152a490e7b3b
hex180d4c3447

103302313031 has 4 divisors (see below), whose sum is σ = 103307500464. Its totient is φ = 103297125600.

The previous prime is 103302313007. The next prime is 103302313043. The reversal of 103302313031 is 130313203301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103302313031 is a prime.

It is a super-2 number, since 2×1033023130312 (a number of 23 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 = 103302312994 and 103302313012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103302313831) 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, 2563730 + ... + 2603711.

It is an arithmetic number, because the mean of its divisors is an integer number (25826875116).

Almost surely, 2103302313031 is an apocalyptic number.

103302313031 is a deficient number, since it is larger than the sum of its proper divisors (5187433).

103302313031 is an equidigital number, since it uses as much as digits as its factorization.

103302313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187432.

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

Adding to 103302313031 its reverse (130313203301), we get a palindrome (233615516332).

The spelling of 103302313031 in words is "one hundred three billion, three hundred two million, three hundred thirteen thousand, thirty-one".

Divisors: 1 19991 5167441 103302313031