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31043304222 = 237799356029
BaseRepresentation
bin11100111010010100…
…110011101100011110
32222010110110020201020
4130322110303230132
51002034041213342
622132221425010
72146165506060
oct347224635436
988113406636
1031043304222
1112190154a27
12602440b166
132c09584a88
141706c29730
15c1a5110ec
hex73a533b1e

31043304222 has 32 divisors (see below), whose sum is σ = 71854310400. Its totient is φ = 8757242208.

The previous prime is 31043304199. The next prime is 31043304277. The reversal of 31043304222 is 22240334013.

It is a junction number, because it is equal to n+sod(n) for n = 31043304192 and 31043304201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4674697 + ... + 4681332.

It is an arithmetic number, because the mean of its divisors is an integer number (2245447200).

Almost surely, 231043304222 is an apocalyptic number.

31043304222 is an abundant number, since it is smaller than the sum of its proper divisors (40811006178).

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

31043304222 is a wasteful number, since it uses less digits than its factorization.

31043304222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356120.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31043304222 its reverse (22240334013), we get a palindrome (53283638235).

The spelling of 31043304222 in words is "thirty-one billion, forty-three million, three hundred four thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 79 158 237 474 553 1106 1659 3318 9356029 18712058 28068087 56136174 65492203 130984406 196476609 392953218 739126291 1478252582 2217378873 4434757746 5173884037 10347768074 15521652111 31043304222