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31043312422 = 266592330929
BaseRepresentation
bin11100111010010100…
…110101101100100110
32222010110110122221221
4130322110311230212
51002034041444142
622132221530554
72146165542013
oct347224655446
988113418857
1031043312422
1112190160101
126024413a5a
132c09588725
141706c2c70a
15c1a513767
hex73a535b26

31043312422 has 8 divisors (see below), whose sum is σ = 46571981400. Its totient is φ = 15519318624.

The previous prime is 31043312411. The next prime is 31043312441. The reversal of 31043312422 is 22421334013.

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

It is a super-2 number, since 2×310433124222 (a number of 22 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 3 ways as a sum of consecutive naturals, for example, 1152147 + ... + 1178782.

It is an arithmetic number, because the mean of its divisors is an integer number (5821497675).

Almost surely, 231043312422 is an apocalyptic number.

31043312422 is a deficient number, since it is larger than the sum of its proper divisors (15528668978).

31043312422 is a wasteful number, since it uses less digits than its factorization.

31043312422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337590.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31043312422 its reverse (22421334013), we get a palindrome (53464646435).

The spelling of 31043312422 in words is "thirty-one billion, forty-three million, three hundred twelve thousand, four hundred twenty-two".

Divisors: 1 2 6659 13318 2330929 4661858 15521656211 31043312422