Search a number
-
+
31331330300023 = 1313954413318653
BaseRepresentation
bin1110001111110111001001…
…10100000001100001110111
311002221020122021112100122121
413013323210310001201313
513101313031024100043
6150345225303540411
76412420400255305
oct707734464014167
9132836567470577
1031331330300023
119a8a5a716a386
12362027b15a707
1314636bb3b5150
147a463190b275
15394eee500ded
hex1c7ee4d01877

31331330300023 has 16 divisors (see below), whose sum is σ = 33984907961760. Its totient is φ = 28712543785344.

The previous prime is 31331330299991. The next prime is 31331330300057. The reversal of 31331330300023 is 32000303313313.

It is a cyclic number.

It is not a de Polignac number, because 31331330300023 - 25 = 31331330299991 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 (31331330300323) 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, 98164965 + ... + 98483617.

It is an arithmetic number, because the mean of its divisors is an integer number (2124056747610).

Almost surely, 231331330300023 is an apocalyptic number.

31331330300023 is a deficient number, since it is larger than the sum of its proper divisors (2653577661737).

31331330300023 is a wasteful number, since it uses less digits than its factorization.

31331330300023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373218.

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 31331330300023 its reverse (32000303313313), we get a palindrome (63331633613336).

The spelling of 31331330300023 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred thirty million, three hundred thousand, twenty-three".

Divisors: 1 13 139 1807 54413 318653 707369 4142489 7563407 44292767 98324291 575805971 17338865689 225405253957 2410102330771 31331330300023