Search a number
-
+
12331330140 = 2235205522169
BaseRepresentation
bin10110111110000000…
…10010101001011100
31011211101120110212010
423133000102221130
5200223310031030
65355343111220
7614403401553
oct133700225134
934741513763
1012331330140
115258794938
1224818a2510
1312169b1b6c
1484da28d9a
154c28bc6b0
hex2df012a5c

12331330140 has 24 divisors (see below), whose sum is σ = 34527724560. Its totient is φ = 3288354688.

The previous prime is 12331330139. The next prime is 12331330159. The reversal of 12331330140 is 4103313321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102761025 + ... + 102761144.

It is an arithmetic number, because the mean of its divisors is an integer number (1438655190).

Almost surely, 212331330140 is an apocalyptic number.

12331330140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331330140 is an abundant number, since it is smaller than the sum of its proper divisors (22196394420).

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

12331330140 is a wasteful number, since it uses less digits than its factorization.

12331330140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205522181 (or 205522179 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12331330140 its reverse (4103313321), we get a palindrome (16434643461).

The spelling of 12331330140 in words is "twelve billion, three hundred thirty-one million, three hundred thirty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 205522169 411044338 616566507 822088676 1027610845 1233133014 2055221690 2466266028 3082832535 4110443380 6165665070 12331330140