Base | Representation |
---|---|
bin | 111111110000111… |
… | …1111100100000000 |
3 | 12112010001211110221 |
4 | 1333201333210000 |
5 | 13340220230121 |
6 | 552151232424 |
7 | 104010310000 |
oct | 17741774400 |
9 | 5463054427 |
10 | 2139617536 |
11 | 9a8838361 |
12 | 4b8678714 |
13 | 28137c5a4 |
14 | 164240000 |
15 | c7c90b41 |
hex | 7f87f900 |
2139617536 has 135 divisors (see below), whose sum is σ = 5068272251. Its totient is φ = 901436928.
The previous prime is 2139617533. The next prime is 2139617549. The reversal of 2139617536 is 6357169312.
The square root of 2139617536 is 46256.
It is a perfect power (a square), and thus also a powerful number.
It is a super-2 number, since 2×21396175362 = 9155926400717422592, which contains 22 as substring.
Its product of digits (204120) is a multiple of the sum of its prime factors (162).
It is a junction number, because it is equal to n+sod(n) for n = 2139617492 and 2139617501.
It is not an unprimeable number, because it can be changed into a prime (2139617533) 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 14 ways as a sum of consecutive naturals, for example, 36264675 + ... + 36264733.
Almost surely, 22139617536 is an apocalyptic number.
2139617536 is the 46256-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2139617536
2139617536 is an abundant number, since it is smaller than the sum of its proper divisors (2928654715).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2139617536 is an frugal number, since it uses more digits than its factorization.
2139617536 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162 (or 68 counting only the distinct ones).
The product of its digits is 204120, while the sum is 43.
The cubic root of 2139617536 is about 1288.5819676290.
The spelling of 2139617536 in words is "two billion, one hundred thirty-nine million, six hundred seventeen thousand, five hundred thirty-six".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •