Search a number
-
+
31233020301 = 3272232223149
BaseRepresentation
bin11101000101101000…
…100001000110001101
32222121200102211020200
4131011220201012031
51002431123122201
622203120004113
72153661202140
oct350550410615
988550384220
1031233020301
111227825347a
126077a60639
132c3997b202
1417240d2057
15c2bed8386
hex745a2118d

31233020301 has 24 divisors (see below), whose sum is σ = 51790502400. Its totient is φ = 17767398816.

The previous prime is 31233020293. The next prime is 31233020311. The reversal of 31233020301 is 10302033213.

31233020301 is a `hidden beast` number, since 3 + 12 + 330 + 20 + 301 = 666.

It is not a de Polignac number, because 31233020301 - 23 = 31233020293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233020311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1097526 + ... + 1125623.

It is an arithmetic number, because the mean of its divisors is an integer number (2157937600).

Almost surely, 231233020301 is an apocalyptic number.

It is an amenable number.

31233020301 is a deficient number, since it is larger than the sum of its proper divisors (20557482099).

31233020301 is a wasteful number, since it uses less digits than its factorization.

31233020301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223385 (or 2223382 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31233020301 its reverse (10302033213), we get a palindrome (41535053514).

It can be divided in two parts, 31 and 233020301, that added together give a palindrome (233020332).

The spelling of 31233020301 in words is "thirty-one billion, two hundred thirty-three million, twenty thousand, three hundred one".

Divisors: 1 3 7 9 21 63 223 669 1561 2007 4683 14049 2223149 6669447 15562043 20008341 46686129 140058387 495762227 1487286681 3470335589 4461860043 10411006767 31233020301