Base | Representation |
---|---|
bin | 11100010101001111… |
… | …010101110100011110 |
3 | 2220112002200201101012 |
4 | 130111033111310132 |
5 | 444300301123032 |
6 | 21550354015222 |
7 | 2124602126606 |
oct | 342517256436 |
9 | 86462621335 |
10 | 30421114142 |
11 | 119a0a20351 |
12 | 5a8bb77512 |
13 | 2b3a6b9c73 |
14 | 1688347c06 |
15 | bd0aad6b2 |
hex | 7153d5d1e |
30421114142 has 4 divisors (see below), whose sum is σ = 45631671216. Its totient is φ = 15210557070.
The previous prime is 30421114081. The next prime is 30421114147. The reversal of 30421114142 is 24141112403.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30421114147) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7605278534 + ... + 7605278537.
It is an arithmetic number, because the mean of its divisors is an integer number (11407917804).
Almost surely, 230421114142 is an apocalyptic number.
30421114142 is a deficient number, since it is larger than the sum of its proper divisors (15210557074).
30421114142 is a wasteful number, since it uses less digits than its factorization.
30421114142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15210557073.
The product of its (nonzero) digits is 768, while the sum is 23.
Adding to 30421114142 its reverse (24141112403), we get a palindrome (54562226545).
The spelling of 30421114142 in words is "thirty billion, four hundred twenty-one million, one hundred fourteen thousand, one hundred forty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •