Base | Representation |
---|---|
bin | 10010011110101… |
… | …00111111011001 |
3 | 101210200110222020 |
4 | 21033110333121 |
5 | 304140404311 |
6 | 23214245053 |
7 | 3561406116 |
oct | 1117247731 |
9 | 353613866 |
10 | 155013081 |
11 | 7a556693 |
12 | 43ab6789 |
13 | 26165922 |
14 | 1683190d |
15 | d91ec06 |
hex | 93d4fd9 |
155013081 has 8 divisors (see below), whose sum is σ = 208815264. Its totient is φ = 102276480.
The previous prime is 155013071. The next prime is 155013101. The reversal of 155013081 is 180310551.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 155013081 - 214 = 154996697 is a prime.
It is a super-2 number, since 2×1550130812 = 48058110562225122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (155013071) 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 7 ways as a sum of consecutive naturals, for example, 266055 + ... + 266636.
It is an arithmetic number, because the mean of its divisors is an integer number (26101908).
Almost surely, 2155013081 is an apocalyptic number.
It is an amenable number.
155013081 is a deficient number, since it is larger than the sum of its proper divisors (53802183).
155013081 is an equidigital number, since it uses as much as digits as its factorization.
155013081 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 532791.
The product of its (nonzero) digits is 600, while the sum is 24.
The square root of 155013081 is about 12450.4249325073. The cubic root of 155013081 is about 537.1836462557.
The spelling of 155013081 in words is "one hundred fifty-five million, thirteen thousand, eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •