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331231133232230 = 25711811606787427
BaseRepresentation
bin100101101010000001100001…
…0000010001110110001100110
31121102210101110012000112001212
41023110003002002032301212
5321403342330101412410
63132245252033151422
7126524442156034250
oct11324030202166146
91542711405015055
10331231133232230
11965a4375593860
12311969903bb572
13112a8c6720ba6a
145bb195b064cd0
152846136699b05
hex12d40c208ec66

331231133232230 has 128 divisors (see below), whose sum is σ = 744382034694144. Its totient is φ = 103095396950400.

The previous prime is 331231133232229. The next prime is 331231133232269. The reversal of 331231133232230 is 32232331132133.

It is a happy number.

It is a super-2 number, since 2×3312311332322302 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3788615777 + ... + 3788703203.

It is an arithmetic number, because the mean of its divisors is an integer number (5815484646048).

Almost surely, 2331231133232230 is an apocalyptic number.

331231133232230 is an abundant number, since it is smaller than the sum of its proper divisors (413150901461914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331231133232230 is a wasteful number, since it uses less digits than its factorization.

331231133232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94330.

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 331231133232230 its reverse (32232331132133), we get a palindrome (363463464364363).

The spelling of 331231133232230 in words is "three hundred thirty-one trillion, two hundred thirty-one billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 811 1622 4055 5677 6067 8110 8921 11354 12134 17842 28385 30335 42469 44605 56770 60670 62447 66737 84938 87427 89210 124894 133474 174854 212345 312235 333685 424690 437135 467159 611989 624470 667370 874270 934318 961697 1223978 1923394 2335795 3059945 4671590 4808485 4920337 6119890 6731879 9616970 9840674 13463758 24601685 33659395 34442359 49203370 54123707 67318790 68884718 70903297 108247414 141806594 172211795 270618535 344423590 354516485 378865949 496323079 530419609 541237070 709032970 757731898 779936267 992646158 1060839218 1559872534 1894329745 2481615395 2652098045 3712937263 3788659490 3899681335 4963230790 5304196090 5459553869 5834615699 7425874526 7799362670 10919107738 11669231398 18564686315 27297769345 29173078495 37129372630 40842309893 54595538690 58346156990 81684619786 204211549465 408423098930 430170302899 860340605798 2150851514495 3011192120293 4301703028990 4731873331889 6022384240586 9463746663778 15055960601465 23659366659445 30111921202930 33123113323223 47318733318890 66246226646446 165615566616115 331231133232230