Base | Representation |
---|---|
bin | 10110101010100010… |
… | …10100110101011000 |
3 | 1011102000021122002202 |
4 | 23111101110311120 |
5 | 144410003222014 |
6 | 5331230545332 |
7 | 610351330556 |
oct | 132521246530 |
9 | 34360248082 |
10 | 12168023384 |
11 | 5184594080 |
12 | 2437068248 |
13 | 11bbc0424a |
14 | 836078bd6 |
15 | 4b33b03de |
hex | 2d5454d58 |
12168023384 has 32 divisors (see below), whose sum is σ = 25467963840. Its totient is φ = 5402292000.
The previous prime is 12168023383. The next prime is 12168023407. The reversal of 12168023384 is 48332086121.
It is a happy number.
It is a super-2 number, since 2×121680233842 (a number of 21 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12168023383) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604042 + ... + 1611609.
It is an arithmetic number, because the mean of its divisors is an integer number (795873870).
Almost surely, 212168023384 is an apocalyptic number.
It is an amenable number.
12168023384 is an abundant number, since it is smaller than the sum of its proper divisors (13299940456).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12168023384 is a wasteful number, since it uses less digits than its factorization.
12168023384 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3215711 (or 3215707 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 38.
The spelling of 12168023384 in words is "twelve billion, one hundred sixty-eight million, twenty-three thousand, three hundred eighty-four".
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