Base | Representation |
---|---|
bin | 100011101111… |
… | …1001101010010 |
3 | 1022021002111221 |
4 | 1013133031102 |
5 | 14244140200 |
6 | 1505355254 |
7 | 315200500 |
oct | 107371522 |
9 | 38232457 |
10 | 18740050 |
11 | a63a74a |
12 | 6338b2a |
13 | 3b61ab4 |
14 | 26bb670 |
15 | 19a291a |
hex | 11df352 |
18740050 has 36 divisors (see below), whose sum is σ = 40552650. Its totient is φ = 6424320.
The previous prime is 18740021. The next prime is 18740053. The reversal of 18740050 is 5004781.
It can be written as a sum of positive squares in 3 ways, for example, as 8684809 + 10055241 = 2947^2 + 3171^2 .
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a junction number, because it is equal to n+sod(n) for n = 18739997 and 18740024.
It is not an unprimeable number, because it can be changed into a prime (18740053) 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, 1375 + ... + 6274.
Almost surely, 218740050 is an apocalyptic number.
18740050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18740050 is an abundant number, since it is smaller than the sum of its proper divisors (21812600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18740050 is a wasteful number, since it uses less digits than its factorization.
18740050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7675 (or 7663 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 25.
The square root of 18740050 is about 4328.9779394217. The cubic root of 18740050 is about 265.6176408572.
The spelling of 18740050 in words is "eighteen million, seven hundred forty thousand, fifty".
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