Search a number
-
+
103220310031 = 176071782943
BaseRepresentation
bin110000000100001101…
…0001111000000001111
3100212102121020001010121
41200020122033000033
53142343344410111
6115230241245411
710312616105326
oct1401032170017
9325377201117
10103220310031
113a8591a0753
1218008333867
13996ca3c837
144dd2a150bd
152a41cea871
hex180868f00f

103220310031 has 4 divisors (see below), whose sum is σ = 109292092992. Its totient is φ = 97148527072.

The previous prime is 103220309923. The next prime is 103220310059. The reversal of 103220310031 is 130013022301.

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

It is a cyclic number.

It is not a de Polignac number, because 103220310031 - 215 = 103220277263 is a prime.

It is a super-2 number, since 2×1032203100312 (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 = 103220309987 and 103220310014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103220310071) 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, 3035891455 + ... + 3035891488.

It is an arithmetic number, because the mean of its divisors is an integer number (27323023248).

Almost surely, 2103220310031 is an apocalyptic number.

103220310031 is a deficient number, since it is larger than the sum of its proper divisors (6071782961).

103220310031 is an equidigital number, since it uses as much as digits as its factorization.

103220310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071782960.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 103220310031 its reverse (130013022301), we get a palindrome (233233332332).

The spelling of 103220310031 in words is "one hundred three billion, two hundred twenty million, three hundred ten thousand, thirty-one".

Divisors: 1 17 6071782943 103220310031