Base | Representation |
---|---|
bin | 10010001011110… |
… | …10011101010001 |
3 | 101122001002112201 |
4 | 21011322131101 |
5 | 303022420410 |
6 | 23045323201 |
7 | 3531416626 |
oct | 1105723521 |
9 | 348032481 |
10 | 152545105 |
11 | 79120439 |
12 | 43106501 |
13 | 257b049b |
14 | 1638c34d |
15 | d5d383a |
hex | 917a751 |
152545105 has 4 divisors (see below), whose sum is σ = 183054132. Its totient is φ = 122036080.
The previous prime is 152545103. The next prime is 152545109. The reversal of 152545105 is 501545251.
152545105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501545251 = 41 ⋅12232811.
It can be written as a sum of positive squares in 2 ways, for example, as 80838081 + 71707024 = 8991^2 + 8468^2 .
It is not a de Polignac number, because 152545105 - 21 = 152545103 is a prime.
It is a super-2 number, since 2×1525451052 = 46540018118922050, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (152545103) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15254506 + ... + 15254515.
It is an arithmetic number, because the mean of its divisors is an integer number (45763533).
Almost surely, 2152545105 is an apocalyptic number.
It is an amenable number.
152545105 is a deficient number, since it is larger than the sum of its proper divisors (30509027).
152545105 is an equidigital number, since it uses as much as digits as its factorization.
152545105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30509026.
The product of its (nonzero) digits is 5000, while the sum is 28.
The square root of 152545105 is about 12350.9151482795. The cubic root of 152545105 is about 534.3175331429.
The spelling of 152545105 in words is "one hundred fifty-two million, five hundred forty-five thousand, one hundred five".
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