Search a number
-
+
31030123230112 = 251994872820859
BaseRepresentation
bin1110000111000110000110…
…11110001111001110100000
311001212110011122021211021111
413003203003132033032200
513031344143021330422
6145555013011033104
76351565244360446
oct703430336171640
9131773148254244
1031030123230112
11998388a678646
123591a1959b794
1314411884880b6
14793c1a358b96
1538c270daba77
hex1c38c378f3a0

31030123230112 has 24 divisors (see below), whose sum is σ = 61397542836000. Its totient is φ = 15437096478144.

The previous prime is 31030123230103. The next prime is 31030123230157. The reversal of 31030123230112 is 21103232103013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2436404062 + ... + 2436416797.

It is an arithmetic number, because the mean of its divisors is an integer number (2558230951500).

Almost surely, 231030123230112 is an apocalyptic number.

31030123230112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31030123230112 is a deficient number, since it is larger than the sum of its proper divisors (30367419605888).

31030123230112 is a wasteful number, since it uses less digits than its factorization.

31030123230112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872821068 (or 4872821060 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31030123230112 its reverse (21103232103013), we get a palindrome (52133355333125).

The spelling of 31030123230112 in words is "thirty-one trillion, thirty billion, one hundred twenty-three million, two hundred thirty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 199 398 796 1592 3184 6368 4872820859 9745641718 19491283436 38982566872 77965133744 155930267488 969691350941 1939382701882 3878765403764 7757530807528 15515061615056 31030123230112