Base | Representation |
---|---|
bin | 11100001110111111010111 |
3 | 111221000212002 |
4 | 130032333113 |
5 | 3343321211 |
6 | 422345515 |
7 | 116624342 |
oct | 34167727 |
9 | 14830762 |
10 | 7401431 |
11 | 41a5894 |
12 | 258b29b |
13 | 16c1b5b |
14 | da9459 |
15 | 9b303b |
hex | 70efd7 |
7401431 has 8 divisors (see below), whose sum is σ = 7891200. Its totient is φ = 6921720.
The previous prime is 7401413. The next prime is 7401479. The reversal of 7401431 is 1341047.
7401431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 7401431 - 26 = 7401367 is a prime.
It is a super-2 number, since 2×74014312 = 109562361695522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7401131) 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, 965 + ... + 3966.
It is an arithmetic number, because the mean of its divisors is an integer number (986400).
Almost surely, 27401431 is an apocalyptic number.
7401431 is a deficient number, since it is larger than the sum of its proper divisors (489769).
7401431 is a wasteful number, since it uses less digits than its factorization.
7401431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5029.
The product of its (nonzero) digits is 336, while the sum is 20.
The square root of 7401431 is about 2720.5571120636. The cubic root of 7401431 is about 194.8820764115.
Adding to 7401431 its reverse (1341047), we get a palindrome (8742478).
The spelling of 7401431 in words is "seven million, four hundred one thousand, four hundred thirty-one".
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