Base | Representation |
---|---|
bin | 100000010110111110… |
… | …1110010000100010101 |
3 | 20122100220220122100102 |
4 | 1000231331302010111 |
5 | 2114304101203232 |
6 | 51531253423445 |
7 | 5010020520260 |
oct | 1005575620425 |
9 | 218326818312 |
10 | 69490647317 |
11 | 2751a727943 |
12 | 1157433ab85 |
13 | 6725a69530 |
14 | 3513107cd7 |
15 | 1c1aa4b662 |
hex | 102df72115 |
69490647317 has 64 divisors (see below), whose sum is σ = 91177519104. Its totient is φ = 51501864960.
The previous prime is 69490647307. The next prime is 69490647377. The reversal of 69490647317 is 71374609496.
It is not a de Polignac number, because 69490647317 - 212 = 69490643221 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69490647307) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9290183 + ... + 9297659.
It is an arithmetic number, because the mean of its divisors is an integer number (1424648736).
Almost surely, 269490647317 is an apocalyptic number.
It is an amenable number.
69490647317 is a deficient number, since it is larger than the sum of its proper divisors (21686871787).
69490647317 is a wasteful number, since it uses less digits than its factorization.
69490647317 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7638.
The product of its (nonzero) digits is 6858432, while the sum is 56.
The spelling of 69490647317 in words is "sixty-nine billion, four hundred ninety million, six hundred forty-seven thousand, three hundred seventeen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •