Base | Representation |
---|---|
bin | 10001100100100… |
… | …10011000011101 |
3 | 101021100201002110 |
4 | 20302102120131 |
5 | 300213301341 |
6 | 22343144233 |
7 | 3436611153 |
oct | 1062223035 |
9 | 337321073 |
10 | 147400221 |
11 | 76226a71 |
12 | 41445079 |
13 | 246cb787 |
14 | 1580d3d3 |
15 | ce19216 |
hex | 8c9261d |
147400221 has 4 divisors (see below), whose sum is σ = 196533632. Its totient is φ = 98266812.
The previous prime is 147400219. The next prime is 147400237. The reversal of 147400221 is 122004741.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 147400221 - 21 = 147400219 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (147400291) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24566701 + ... + 24566706.
It is an arithmetic number, because the mean of its divisors is an integer number (49133408).
Almost surely, 2147400221 is an apocalyptic number.
It is an amenable number.
147400221 is a deficient number, since it is larger than the sum of its proper divisors (49133411).
147400221 is an equidigital number, since it uses as much as digits as its factorization.
147400221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49133410.
The product of its (nonzero) digits is 448, while the sum is 21.
The square root of 147400221 is about 12140.8492701293. The cubic root of 147400221 is about 528.2417360427.
Adding to 147400221 its reverse (122004741), we get a palindrome (269404962).
The spelling of 147400221 in words is "one hundred forty-seven million, four hundred thousand, two hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.032 sec. • engine limits •