Base | Representation |
---|---|
bin | 1010001110100… |
… | …1101010101111 |
3 | 2222201112221012 |
4 | 2203221222233 |
5 | 41440301033 |
6 | 4131255435 |
7 | 1030434206 |
oct | 243515257 |
9 | 88645835 |
10 | 42900143 |
11 | 22241570 |
12 | 1244a57b |
13 | 8b70900 |
14 | 59aa23d |
15 | 3b76248 |
hex | 28e9aaf |
42900143 has 24 divisors (see below), whose sum is σ = 51860736. Its totient is φ = 35162400.
The previous prime is 42900107. The next prime is 42900149. The reversal of 42900143 is 34100924.
It is not a de Polignac number, because 42900143 - 26 = 42900079 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42900149) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87128 + ... + 87618.
It is an arithmetic number, because the mean of its divisors is an integer number (2160864).
Almost surely, 242900143 is an apocalyptic number.
42900143 is a deficient number, since it is larger than the sum of its proper divisors (8960593).
42900143 is a wasteful number, since it uses less digits than its factorization.
42900143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 575 (or 562 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 23.
The square root of 42900143 is about 6549.8200738646. The cubic root of 42900143 is about 350.0684029572.
The spelling of 42900143 in words is "forty-two million, nine hundred thousand, one hundred forty-three".
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