Search a number
-
+
31332013144397 = 723811879883191
BaseRepresentation
bin1110001111111000011011…
…00000110111100101001101
311002221022101212102110000222
413013330031200313211031
513101320430331110042
6150345421135401125
76412443331325240
oct707741540674515
9132838355373028
1031332013144397
119a8a917661479
12362042b9831a5
1314637999c8984
147a469849b257
1539503e4352d2
hex1c7f0d83794d

31332013144397 has 8 divisors (see below), whose sum is σ = 35823054106752. Its totient is φ = 26844731953200.

The previous prime is 31332013144387. The next prime is 31332013144483. The reversal of 31332013144397 is 79344131023313.

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

It is not a de Polignac number, because 31332013144397 - 24 = 31332013144381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332013144307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939924929 + ... + 939958262.

It is an arithmetic number, because the mean of its divisors is an integer number (4477881763344).

Almost surely, 231332013144397 is an apocalyptic number.

It is an amenable number.

31332013144397 is a deficient number, since it is larger than the sum of its proper divisors (4491040962355).

31332013144397 is a wasteful number, since it uses less digits than its factorization.

31332013144397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879885579.

The product of its (nonzero) digits is 489888, while the sum is 44.

The spelling of 31332013144397 in words is "thirty-one trillion, three hundred thirty-two billion, thirteen million, one hundred forty-four thousand, three hundred ninety-seven".

Divisors: 1 7 2381 16667 1879883191 13159182337 4476001877771 31332013144397