Search a number
-
+
331120430231 = 3137932816057
BaseRepresentation
bin1001101000110000101…
…00001100110010010111
31011122200100111200110012
410310120110030302113
520411113312231411
6412040431550435
732631321134543
oct4643024146227
91148610450405
10331120430231
1111847793a128
125420b68b41b
13252bc378876
14120522c6a23
15892e85718b
hex4d1850cc97

331120430231 has 8 divisors (see below), whose sum is σ = 341891969664. Its totient is φ = 320354530560.

The previous prime is 331120430227. The next prime is 331120430233. The reversal of 331120430231 is 132034021133.

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

It is a cyclic number.

It is not a de Polignac number, because 331120430231 - 22 = 331120430227 is a prime.

It is a super-2 number, since 2×3311204302312 (a number of 24 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 = 331120430197 and 331120430206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331120430233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1290446 + ... + 1525611.

It is an arithmetic number, because the mean of its divisors is an integer number (42736496208).

Almost surely, 2331120430231 is an apocalyptic number.

331120430231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331120430231 is a deficient number, since it is larger than the sum of its proper divisors (10771539433).

331120430231 is a wasteful number, since it uses less digits than its factorization.

331120430231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819881.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 331120430231 its reverse (132034021133), we get a palindrome (463154451364).

The spelling of 331120430231 in words is "three hundred thirty-one billion, one hundred twenty million, four hundred thirty thousand, two hundred thirty-one".

Divisors: 1 31 3793 117583 2816057 87297767 10681304201 331120430231