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31130914027 = 47791651397
BaseRepresentation
bin11100111111100011…
…000000110011101011
32222100120022021202211
4130333203000303223
51002224003222102
622145031305551
72151311255203
oct347743006353
988316267684
1031130914027
1112225653524
12604981b2b7
132c2177aab5
141714713403
15c230697d7
hex73f8c0ceb

31130914027 has 4 divisors (see below), whose sum is σ = 31131613216. Its totient is φ = 31130214840.

The previous prime is 31130914019. The next prime is 31130914057. The reversal of 31130914027 is 72041903113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31130914027 - 23 = 31130914019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31130914027.

It is not an unprimeable number, because it can be changed into a prime (31130914007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277908 + ... + 373489.

It is an arithmetic number, because the mean of its divisors is an integer number (7782903304).

Almost surely, 231130914027 is an apocalyptic number.

31130914027 is a deficient number, since it is larger than the sum of its proper divisors (699189).

31130914027 is an equidigital number, since it uses as much as digits as its factorization.

31130914027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699188.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 31130914027 in words is "thirty-one billion, one hundred thirty million, nine hundred fourteen thousand, twenty-seven".

Divisors: 1 47791 651397 31130914027