Base | Representation |
---|---|
bin | 10010011111011… |
… | …00010011000001 |
3 | 101210212022220221 |
4 | 21033230103001 |
5 | 304201433140 |
6 | 23220303041 |
7 | 3562254334 |
oct | 1117542301 |
9 | 353768827 |
10 | 155108545 |
11 | 7a611389 |
12 | 43b41a81 |
13 | 2619a207 |
14 | 1685861b |
15 | d93d14a |
hex | 93ec4c1 |
155108545 has 8 divisors (see below), whose sum is σ = 186421824. Its totient is φ = 123892464.
The previous prime is 155108537. The next prime is 155108549. The reversal of 155108545 is 545801551.
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 155108545 - 23 = 155108537 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 155108545.
It is not an unprimeable number, because it can be changed into a prime (155108549) 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 7 ways as a sum of consecutive naturals, for example, 20739 + ... + 27208.
It is an arithmetic number, because the mean of its divisors is an integer number (23302728).
Almost surely, 2155108545 is an apocalyptic number.
It is an amenable number.
155108545 is a deficient number, since it is larger than the sum of its proper divisors (31313279).
155108545 is an equidigital number, since it uses as much as digits as its factorization.
155108545 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48599.
The product of its (nonzero) digits is 20000, while the sum is 34.
The square root of 155108545 is about 12454.2581071696. The cubic root of 155108545 is about 537.2938975448.
The spelling of 155108545 in words is "one hundred fifty-five million, one hundred eight thousand, five hundred forty-five".
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