Base | Representation |
---|---|
bin | 10001001011110… |
… | …01001110000111 |
3 | 101001020122120220 |
4 | 20211321032013 |
5 | 243400321211 |
6 | 22145355423 |
7 | 3400160364 |
oct | 1045711607 |
9 | 331218526 |
10 | 144151431 |
11 | 74408116 |
12 | 40338b73 |
13 | 23b31b08 |
14 | 1520546b |
15 | c9c6806 |
hex | 8979387 |
144151431 has 16 divisors (see below), whose sum is σ = 201074400. Its totient is φ = 91739648.
The previous prime is 144151429. The next prime is 144151453. The reversal of 144151431 is 134151441.
It is a happy number.
144151431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 144151431 - 21 = 144151429 is a prime.
It is a super-2 number, since 2×1441514312 = 41559270118695522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144151411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1566 + ... + 17051.
It is an arithmetic number, because the mean of its divisors is an integer number (12567150).
Almost surely, 2144151431 is an apocalyptic number.
144151431 is a deficient number, since it is larger than the sum of its proper divisors (56922969).
144151431 is a wasteful number, since it uses less digits than its factorization.
144151431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18738.
The product of its digits is 960, while the sum is 24.
The square root of 144151431 is about 12006.3079670646. The cubic root of 144151431 is about 524.3319466462.
The spelling of 144151431 in words is "one hundred forty-four million, one hundred fifty-one thousand, four hundred thirty-one".
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