Search a number
-
+
31373353123 = 771349918041
BaseRepresentation
bin11101001101111111…
…110110000010100011
32222222110111110200121
4131031333312002203
51003223034244443
622225051501111
72160314046550
oct351577660243
988873443617
1031373353123
111233a492612
1260b6a57797
132c5ca73b98
1417389c1a27
15c394a84ed
hex74dff60a3

31373353123 has 16 divisors (see below), whose sum is σ = 36372672000. Its totient is φ = 26503646400.

The previous prime is 31373353079. The next prime is 31373353163. The reversal of 31373353123 is 32135337313.

It is not a de Polignac number, because 31373353123 - 229 = 30836482211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31373353163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1729983 + ... + 1748023.

It is an arithmetic number, because the mean of its divisors is an integer number (2273292000).

Almost surely, 231373353123 is an apocalyptic number.

31373353123 is a deficient number, since it is larger than the sum of its proper divisors (4999318877).

31373353123 is a wasteful number, since it uses less digits than its factorization.

31373353123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21618.

The product of its digits is 51030, while the sum is 34.

The spelling of 31373353123 in words is "thirty-one billion, three hundred seventy-three million, three hundred fifty-three thousand, one hundred twenty-three".

Divisors: 1 7 71 497 3499 18041 24493 126287 248429 1280911 1739003 8966377 63125459 441878213 4481907589 31373353123