Base | Representation |
---|---|
bin | 10010000001110… |
… | …01100101010101 |
3 | 101112120022122221 |
4 | 21000321211111 |
5 | 302203341210 |
6 | 23001222341 |
7 | 3514304065 |
oct | 1100714525 |
9 | 345508587 |
10 | 151230805 |
11 | 78402a40 |
12 | 427919b1 |
13 | 254401ab |
14 | 161293a5 |
15 | d4241da |
hex | 9039955 |
151230805 has 16 divisors (see below), whose sum is σ = 198863424. Its totient is φ = 109492480.
The previous prime is 151230799. The next prime is 151230811. The reversal of 151230805 is 508032151.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (151230799) and next prime (151230811).
It is not a de Polignac number, because 151230805 - 29 = 151230293 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 151230805.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6429 + ... + 18541.
It is an arithmetic number, because the mean of its divisors is an integer number (12428964).
Almost surely, 2151230805 is an apocalyptic number.
It is an amenable number.
151230805 is a deficient number, since it is larger than the sum of its proper divisors (47632619).
151230805 is a wasteful number, since it uses less digits than its factorization.
151230805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12356.
The product of its (nonzero) digits is 1200, while the sum is 25.
The square root of 151230805 is about 12297.5934637636. The cubic root of 151230805 is about 532.7785783279.
Adding to 151230805 its reverse (508032151), we get a palindrome (659262956).
The spelling of 151230805 in words is "one hundred fifty-one million, two hundred thirty thousand, eight hundred five".
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