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31020022303093 = 5383284959129
BaseRepresentation
bin1110000110110011010010…
…11010010000100101110101
311001211111002200121120022101
413003121221122100211311
513031213001202144333
6145550222421102101
76351060033042565
oct703315132204565
9131744080546271
1031020022303093
11997a57699967a
12358ba7a857931
1314402388c11c5
1479353ca42da5
1538bd7e21467d
hex1c3669690975

31020022303093 has 12 divisors (see below), whose sum is σ = 31990680728460. Its totient is φ = 30068054908736.

The previous prime is 31020022303037. The next prime is 31020022303177. The reversal of 31020022303093 is 39030322002013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21335465855089 + 9684556448004 = 4619033^2 + 3112002^2 .

It is a de Polignac number, because none of the positive numbers 2k-31020022303093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31020062303093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42114448 + ... + 42844681.

It is an arithmetic number, because the mean of its divisors is an integer number (2665890060705).

Almost surely, 231020022303093 is an apocalyptic number.

It is an amenable number.

31020022303093 is a deficient number, since it is larger than the sum of its proper divisors (970658425367).

31020022303093 is an frugal number, since it uses more digits than its factorization.

31020022303093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84959348 (or 84959265 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

The spelling of 31020022303093 in words is "thirty-one trillion, twenty billion, twenty-two million, three hundred three thousand, ninety-three".

Divisors: 1 53 83 4399 6889 365117 84959129 4502833837 7051607707 373735208471 585283439681 31020022303093