Base | Representation |
---|---|
bin | 1010011110011… |
… | …00101101100011 |
3 | 20010100021101211 |
4 | 11033030231203 |
5 | 134443322212 |
6 | 12415210551 |
7 | 2114612440 |
oct | 517145543 |
9 | 203307354 |
10 | 87870307 |
11 | 45667298 |
12 | 25516a57 |
13 | 15287785 |
14 | b9549c7 |
15 | 7aaa9a7 |
hex | 53ccb63 |
87870307 has 16 divisors (see below), whose sum is σ = 107965440. Its totient is φ = 69830208.
The previous prime is 87870283. The next prime is 87870311. The reversal of 87870307 is 70307878.
It is not a de Polignac number, because 87870307 - 27 = 87870179 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 87870307.
It is not an unprimeable number, because it can be changed into a prime (87870347) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778 + ... + 13279.
It is an arithmetic number, because the mean of its divisors is an integer number (6747840).
Almost surely, 287870307 is an apocalyptic number.
87870307 is a deficient number, since it is larger than the sum of its proper divisors (20095133).
87870307 is a wasteful number, since it uses less digits than its factorization.
87870307 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14130.
The product of its (nonzero) digits is 65856, while the sum is 40.
The square root of 87870307 is about 9373.9163106996. The cubic root of 87870307 is about 444.5773995814.
The spelling of 87870307 in words is "eighty-seven million, eight hundred seventy thousand, three hundred seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.082 sec. • engine limits •