Search a number
-
+
31220000210119 = 7241197493315991
BaseRepresentation
bin1110001100100111110010…
…00001011011110011000111
311002112121021111022210221111
413012103321001123303013
513043002030023210434
6150222134201425451
76401366465152600
oct706237101336307
9132477244283844
1031220000210119
119a47367240016
12360278aa9b287
1314560584763c6
1479d0adc12da7
15392185772964
hex1c64f905bcc7

31220000210119 has 48 divisors (see below), whose sum is σ = 37401693126336. Its totient is φ = 25967903270400.

The previous prime is 31220000210117. The next prime is 31220000210123. The reversal of 31220000210119 is 91101200002213.

It is not a de Polignac number, because 31220000210119 - 21 = 31220000210117 is a prime.

It is a super-2 number, since 2×312200002101192 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31220000210119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220000210117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1952340214 + ... + 1952356204.

It is an arithmetic number, because the mean of its divisors is an integer number (779201940132).

Almost surely, 231220000210119 is an apocalyptic number.

31220000210119 is a deficient number, since it is larger than the sum of its proper divisors (6181692916217).

31220000210119 is a wasteful number, since it uses less digits than its factorization.

31220000210119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21176 (or 21169 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 31220000210119 in words is "thirty-one trillion, two hundred twenty billion, two hundred ten thousand, one hundred nineteen".

Divisors: 1 7 41 49 197 287 1379 2009 4933 8077 9653 15991 34531 56539 111937 202253 241717 395773 655631 783559 971801 1415771 3150227 4589417 6802607 9910397 22051589 32125919 39843841 47618249 78883603 129159307 154361123 278906887 552185221 904115149 1952348209 3234227723 3865296547 6328806043 15540069791 22639594061 108780488537 158477158427 637142861431 761463419759 4460000030017 31220000210119