Base | Representation |
---|---|
bin | 100010100111… |
… | …1101011011010 |
3 | 1021011020002000 |
4 | 1011033223122 |
5 | 14121332104 |
6 | 1445021430 |
7 | 310201506 |
oct | 105175332 |
9 | 37136060 |
10 | 18152154 |
11 | a278a89 |
12 | 60b4876 |
13 | 39b7327 |
14 | 25a7306 |
15 | 18d8639 |
hex | 114fada |
18152154 has 16 divisors (see below), whose sum is σ = 40338240. Its totient is φ = 6050700.
The previous prime is 18152153. The next prime is 18152159. The reversal of 18152154 is 45125181.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (18152153) 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, 168022 + ... + 168129.
It is an arithmetic number, because the mean of its divisors is an integer number (2521140).
Almost surely, 218152154 is an apocalyptic number.
18152154 is an abundant number, since it is smaller than the sum of its proper divisors (22186086).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18152154 is a wasteful number, since it uses less digits than its factorization.
18152154 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 336162 (or 336156 counting only the distinct ones).
The product of its digits is 1600, while the sum is 27.
The square root of 18152154 is about 4260.5344735139. The cubic root of 18152154 is about 262.8105060332.
It can be divided in two parts, 1815 and 2154, that added together give a square (3969 = 632).
The spelling of 18152154 in words is "eighteen million, one hundred fifty-two thousand, one hundred fifty-four".
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