Base | Representation |
---|---|
bin | 10001101010101111001… |
… | …111000010000001101011 |
3 | 11022001212011100112222112 |
4 | 101222233033002001223 |
5 | 124343004401340411 |
6 | 2325432004512535 |
7 | 153501020635136 |
oct | 21525717020153 |
9 | 4261764315875 |
10 | 1214120730731 |
11 | 4289a6556097 |
12 | 17737a6ab74b |
13 | 8a64cc1828c |
14 | 42a99a6b21d |
15 | 218ae71ab8b |
hex | 11aaf3c206b |
1214120730731 has 8 divisors (see below), whose sum is σ = 1239989160960. Its totient is φ = 1188253803688.
The previous prime is 1214120730679. The next prime is 1214120730743. The reversal of 1214120730731 is 1370370214121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1214120730731 - 238 = 939242823787 is a prime.
It is a super-2 number, since 2×12141207307312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1214120730751) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339310 + ... + 2054748.
It is an arithmetic number, because the mean of its divisors is an integer number (154998645120).
Almost surely, 21214120730731 is an apocalyptic number.
1214120730731 is a deficient number, since it is larger than the sum of its proper divisors (25868430229).
1214120730731 is an equidigital number, since it uses as much as digits as its factorization.
1214120730731 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 751593.
The product of its (nonzero) digits is 7056, while the sum is 32.
Adding to 1214120730731 its reverse (1370370214121), we get a palindrome (2584490944852).
The spelling of 1214120730731 in words is "one trillion, two hundred fourteen billion, one hundred twenty million, seven hundred thirty thousand, seven hundred thirty-one".
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