Search a number
-
+
313131223030 = 2531313122303
BaseRepresentation
bin1001000111010000001…
…00110100011111110110
31002221020122122021100211
410203220010310133312
520112243043114110
6355503412500034
731423453323403
oct4435004643766
91087218567324
10313131223030
1111088645953a
125082b01a61a
13236b3456972
14112270a92aa
15822a3d198a
hex48e81347f6

313131223030 has 8 divisors (see below), whose sum is σ = 563636201472. Its totient is φ = 125252489208.

The previous prime is 313131222997. The next prime is 313131223043. The reversal of 313131223030 is 30322131313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 313131222992 and 313131223010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15656561142 + ... + 15656561161.

It is an arithmetic number, because the mean of its divisors is an integer number (70454525184).

Almost surely, 2313131223030 is an apocalyptic number.

313131223030 is a deficient number, since it is larger than the sum of its proper divisors (250504978442).

313131223030 is a wasteful number, since it uses less digits than its factorization.

313131223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31313122310.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 313131223030 its reverse (30322131313), we get a palindrome (343453354343).

The spelling of 313131223030 in words is "three hundred thirteen billion, one hundred thirty-one million, two hundred twenty-three thousand, thirty".

Divisors: 1 2 5 10 31313122303 62626244606 156565611515 313131223030