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31143003322 = 219819552719
BaseRepresentation
bin11101000000010001…
…001000010010111010
32222101102001111011111
4131000101020102322
51002240102101242
622150142350534
72151516106024
oct350021102272
988342044144
1031143003322
1112231460382
12605188b44a
132c24121622
14171617d014
15c24156817
hex7404484ba

31143003322 has 8 divisors (see below), whose sum is σ = 49173163200. Its totient is φ = 14751948924.

The previous prime is 31143003319. The next prime is 31143003323. The reversal of 31143003322 is 22330034113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31143003293 and 31143003302.

It is not an unprimeable number, because it can be changed into a prime (31143003323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409776322 + ... + 409776397.

It is an arithmetic number, because the mean of its divisors is an integer number (6146645400).

Almost surely, 231143003322 is an apocalyptic number.

31143003322 is a deficient number, since it is larger than the sum of its proper divisors (18030159878).

31143003322 is a wasteful number, since it uses less digits than its factorization.

31143003322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819552740.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31143003322 its reverse (22330034113), we get a palindrome (53473037435).

The spelling of 31143003322 in words is "thirty-one billion, one hundred forty-three million, three thousand, three hundred twenty-two".

Divisors: 1 2 19 38 819552719 1639105438 15571501661 31143003322