Base | Representation |
---|---|
bin | 1001000100001… |
… | …1000110100110 |
3 | 2122112210120010 |
4 | 2101003012212 |
5 | 34213223330 |
6 | 3434551050 |
7 | 641123643 |
oct | 221030646 |
9 | 78483503 |
10 | 38023590 |
11 | 1a510760 |
12 | 10898486 |
13 | 7b54087 |
14 | 509adca |
15 | 35113b0 |
hex | 24431a6 |
38023590 has 32 divisors (see below), whose sum is σ = 99553536. Its totient is φ = 9217760.
The previous prime is 38023549. The next prime is 38023619. The reversal of 38023590 is 9532083.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57282 + ... + 57941.
It is an arithmetic number, because the mean of its divisors is an integer number (3111048).
Almost surely, 238023590 is an apocalyptic number.
38023590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
38023590 is an abundant number, since it is smaller than the sum of its proper divisors (61529946).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38023590 is a wasteful number, since it uses less digits than its factorization.
38023590 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 115244.
The product of its (nonzero) digits is 6480, while the sum is 30.
The square root of 38023590 is about 6166.3271077684. The cubic root of 38023590 is about 336.2670955870.
Subtracting from 38023590 its sum of digits (30), we obtain a triangular number (38023560 = T8720).
The spelling of 38023590 in words is "thirty-eight million, twenty-three thousand, five hundred ninety".
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