Base | Representation |
---|---|
bin | 10000100111001000… |
… | …10000101010100110 |
3 | 212000112011212022020 |
4 | 20103210100222212 |
5 | 121231030112032 |
6 | 4032540044010 |
7 | 434000336625 |
oct | 102344205246 |
9 | 25015155266 |
10 | 8918207142 |
11 | 3867106029 |
12 | 188a833606 |
13 | ac1842b60 |
14 | 6086036bc |
15 | 372e21b2c |
hex | 213910aa6 |
8918207142 has 32 divisors (see below), whose sum is σ = 19451604480. Its totient is φ = 2709326880.
The previous prime is 8918207141. The next prime is 8918207153. The reversal of 8918207142 is 2417028198.
It is a junction number, because it is equal to n+sod(n) for n = 8918207094 and 8918207103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8918207141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717484 + ... + 729807.
It is an arithmetic number, because the mean of its divisors is an integer number (607862640).
Almost surely, 28918207142 is an apocalyptic number.
8918207142 is an abundant number, since it is smaller than the sum of its proper divisors (10533397338).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8918207142 is a wasteful number, since it uses less digits than its factorization.
8918207142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1447388.
The product of its (nonzero) digits is 64512, while the sum is 42.
The square root of 8918207142 is about 94436.2596781554. The cubic root of 8918207142 is about 2073.7633036834.
The spelling of 8918207142 in words is "eight billion, nine hundred eighteen million, two hundred seven thousand, one hundred forty-two".
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