Base | Representation |
---|---|
bin | 100100001000… |
… | …0010110100010 |
3 | 1022122022122100 |
4 | 1020100112202 |
5 | 14322110341 |
6 | 1513551230 |
7 | 316666404 |
oct | 110202642 |
9 | 38568570 |
10 | 18941346 |
11 | a767a06 |
12 | 6415516 |
13 | 3c025c8 |
14 | 2730b74 |
15 | 19e23b6 |
hex | 12105a2 |
18941346 has 24 divisors (see below), whose sum is σ = 41344524. Its totient is φ = 6266880.
The previous prime is 18941339. The next prime is 18941357. The reversal of 18941346 is 64314981.
It can be written as a sum of positive squares in 2 ways, for example, as 18533025 + 408321 = 4305^2 + 639^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 18941346.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1375 + ... + 6306.
Almost surely, 218941346 is an apocalyptic number.
18941346 is an abundant number, since it is smaller than the sum of its proper divisors (22403178).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18941346 is a wasteful number, since it uses less digits than its factorization.
18941346 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7826 (or 7823 counting only the distinct ones).
The product of its digits is 20736, while the sum is 36.
The square root of 18941346 is about 4352.1656678026. The cubic root of 18941346 is about 266.5652986246.
It can be divided in two parts, 1894 and 1346, that added together give a triangular number (3240 = T80).
The spelling of 18941346 in words is "eighteen million, nine hundred forty-one thousand, three hundred forty-six".
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