Search a number
-
+
31222433030 = 25531812711201
BaseRepresentation
bin11101000101000000…
…001000010100000110
32222120221111221020112
4131011000020110012
51002420420324110
622202101033022
72153502205355
oct350500102406
988527457215
1031222433030
1112272282068
1260743b5772
132c37712259
14172293799c
15c2b0e6405
hex745008506

31222433030 has 64 divisors (see below), whose sum is σ = 57837701376. Its totient is φ = 12130560000.

The previous prime is 31222432991. The next prime is 31222433051. The reversal of 31222433030 is 3033422213.

It is a junction number, because it is equal to n+sod(n) for n = 31222432987 and 31222433005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25996430 + ... + 25997630.

It is an arithmetic number, because the mean of its divisors is an integer number (903714084).

Almost surely, 231222433030 is an apocalyptic number.

31222433030 is a deficient number, since it is larger than the sum of its proper divisors (26615268346).

31222433030 is a wasteful number, since it uses less digits than its factorization.

31222433030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31222433030 its reverse (3033422213), we get a palindrome (34255855243).

The spelling of 31222433030 in words is "thirty-one billion, two hundred twenty-two million, four hundred thirty-three thousand, thirty".

Divisors: 1 2 5 10 53 106 181 265 271 362 530 542 905 1201 1355 1810 2402 2710 6005 9593 12010 14363 19186 28726 47965 49051 63653 71815 95930 98102 127306 143630 217381 245255 318265 325471 434762 490510 636530 650942 1086905 1627355 2173810 2599703 3254710 5199406 11521193 12998515 17249963 23042386 25997030 34499926 57605965 58910251 86249815 115211930 117820502 172499630 294551255 589102510 3122243303 6244486606 15611216515 31222433030