Base | Representation |
---|---|
bin | 101001001001101… |
… | …0010000111000110 |
3 | 10120020012020011120 |
4 | 1102103102013012 |
5 | 10311440133010 |
6 | 345003014410 |
7 | 46134330666 |
oct | 12223220706 |
9 | 3506166146 |
10 | 1380786630 |
11 | 649466483 |
12 | 32650a406 |
13 | 1900b2412 |
14 | d15501a6 |
15 | 8134be70 |
hex | 524d21c6 |
1380786630 has 32 divisors (see below), whose sum is σ = 3319985664. Its totient is φ = 367532256.
The previous prime is 1380786619. The next prime is 1380786637. The reversal of 1380786630 is 366870831.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1380786637) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25662 + ... + 58481.
It is an arithmetic number, because the mean of its divisors is an integer number (103749552).
Almost surely, 21380786630 is an apocalyptic number.
1380786630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1380786630 is an abundant number, since it is smaller than the sum of its proper divisors (1939199034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1380786630 is a wasteful number, since it uses less digits than its factorization.
1380786630 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84700.
The product of its (nonzero) digits is 145152, while the sum is 42.
The square root of 1380786630 is about 37158.9374175312. The cubic root of 1380786630 is about 1113.5477833003.
The spelling of 1380786630 in words is "one billion, three hundred eighty million, seven hundred eighty-six thousand, six hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •