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31330132022 = 272473390481
BaseRepresentation
bin11101001011011010…
…111110000000110110
32222212110011121111002
4131023122332000312
51003131003211042
622220505243302
72156250504530
oct351332760066
988773147432
1031330132022
11123180519a2
1260a4493532
132c53b20177
141732d70850
15c357bc132
hex74b6be036

31330132022 has 16 divisors (see below), whose sum is σ = 53711562912. Its totient is φ = 13426508160.

The previous prime is 31330132013. The next prime is 31330132091. The reversal of 31330132022 is 22023103313.

It is a junction number, because it is equal to n+sod(n) for n = 31330131985 and 31330132003.

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 7 ways as a sum of consecutive naturals, for example, 301022 + ... + 391502.

It is an arithmetic number, because the mean of its divisors is an integer number (3356972682).

Almost surely, 231330132022 is an apocalyptic number.

31330132022 is a deficient number, since it is larger than the sum of its proper divisors (22381430890).

31330132022 is a wasteful number, since it uses less digits than its factorization.

31330132022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115223.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31330132022 its reverse (22023103313), we get a palindrome (53353235335).

The spelling of 31330132022 in words is "thirty-one billion, three hundred thirty million, one hundred thirty-two thousand, twenty-two".

Divisors: 1 2 7 14 24733 49466 90481 173131 180962 346262 633367 1266734 2237866573 4475733146 15665066011 31330132022