Base | Representation |
---|---|
bin | 10010011000110… |
… | …01011111110001 |
3 | 101202020110111200 |
4 | 21030121133301 |
5 | 303441320410 |
6 | 23150001413 |
7 | 3552030120 |
oct | 1114313761 |
9 | 352213450 |
10 | 154245105 |
11 | 7a0816a3 |
12 | 437a6269 |
13 | 25c571c1 |
14 | 166b1ab7 |
15 | d81c3c0 |
hex | 93197f1 |
154245105 has 48 divisors (see below), whose sum is σ = 311351040. Its totient is φ = 69174144.
The previous prime is 154245073. The next prime is 154245127. The reversal of 154245105 is 501542451.
It is not a de Polignac number, because 154245105 - 25 = 154245073 is a prime.
It is a super-2 number, since 2×1542451052 = 47583104832922050, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12076 + ... + 21314.
It is an arithmetic number, because the mean of its divisors is an integer number (6486480).
Almost surely, 2154245105 is an apocalyptic number.
154245105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
154245105 is an abundant number, since it is smaller than the sum of its proper divisors (157105935).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
154245105 is a wasteful number, since it uses less digits than its factorization.
154245105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9310 (or 9307 counting only the distinct ones).
The product of its (nonzero) digits is 4000, while the sum is 27.
The square root of 154245105 is about 12419.5452815310. The cubic root of 154245105 is about 536.2950603568.
Adding to 154245105 its reverse (501542451), we get a palindrome (655787556).
The spelling of 154245105 in words is "one hundred fifty-four million, two hundred forty-five thousand, one hundred five".
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