Base | Representation |
---|---|
bin | 1011101101110100… |
… | …1110010001000111 |
3 | 22010011212112221202 |
4 | 2323131032101013 |
5 | 22420110000012 |
6 | 1240024133115 |
7 | 140636026142 |
oct | 27335162107 |
9 | 8104775852 |
10 | 3145000007 |
11 | 13742a8066 |
12 | 73930719b |
13 | 3b1752666 |
14 | 21b98d059 |
15 | 136186cc2 |
hex | bb74e447 |
3145000007 has 4 divisors (see below), whose sum is σ = 3145512096. Its totient is φ = 3144487920.
The previous prime is 3144999973. The next prime is 3145000009. The reversal of 3145000007 is 7000005413.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 3145000007 - 226 = 3077891143 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 (3145000009) 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, 246719 + ... + 259152.
It is an arithmetic number, because the mean of its divisors is an integer number (786378024).
Almost surely, 23145000007 is an apocalyptic number.
3145000007 is a deficient number, since it is larger than the sum of its proper divisors (512089).
3145000007 is an equidigital number, since it uses as much as digits as its factorization.
3145000007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 512088.
The product of its (nonzero) digits is 420, while the sum is 20.
The square root of 3145000007 is about 56080.2996336503. The cubic root of 3145000007 is about 1465.1211922401.
The spelling of 3145000007 in words is "three billion, one hundred forty-five million, seven", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •