Base | Representation |
---|---|
bin | 110001011011… |
… | …111011010010 |
3 | 220101102000100 |
4 | 301123323102 |
5 | 11304200232 |
6 | 1141433230 |
7 | 215103426 |
oct | 61337322 |
9 | 26342010 |
10 | 12959442 |
11 | 7351691 |
12 | 440b816 |
13 | 28b9912 |
14 | 1a14b86 |
15 | 120ec7c |
hex | c5bed2 |
12959442 has 36 divisors (see below), whose sum is σ = 29374254. Its totient is φ = 4128960.
The previous prime is 12959431. The next prime is 12959449. The reversal of 12959442 is 24495921.
12959442 is a `hidden beast` number, since 1 + 29 + 594 + 42 = 666.
It can be written as a sum of positive squares in only one way, i.e., 12383361 + 576081 = 3519^2 + 759^2 .
It is a junction number, because it is equal to n+sod(n) for n = 12959397 and 12959406.
It is not an unprimeable number, because it can be changed into a prime (12959449) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8842 + ... + 10202.
Almost surely, 212959442 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12959442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14687127).
12959442 is an abundant number, since it is smaller than the sum of its proper divisors (16414812).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12959442 is a wasteful number, since it uses less digits than its factorization.
12959442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1415 (or 1389 counting only the distinct ones).
The product of its digits is 25920, while the sum is 36.
The square root of 12959442 is about 3599.9224991658. The cubic root of 12959442 is about 234.8886872857. Note that the first 3 decimals are identical.
The spelling of 12959442 in words is "twelve million, nine hundred fifty-nine thousand, four hundred forty-two".
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