Base | Representation |
---|---|
bin | 1001001001111100001… |
… | …1011000010001110001 |
3 | 120000222121202222210100 |
4 | 2102133003120101301 |
5 | 10034111021121443 |
6 | 200131244223013 |
7 | 14235503604444 |
oct | 2223703302161 |
9 | 500877688710 |
10 | 157287285873 |
11 | 60783632963 |
12 | 2659723aa69 |
13 | 11aa8251133 |
14 | 788153165b |
15 | 41587453d3 |
hex | 249f0d8471 |
157287285873 has 12 divisors (see below), whose sum is σ = 227432666448. Its totient is φ = 104747458200.
The previous prime is 157287285839. The next prime is 157287285901. The reversal of 157287285873 is 378582782751.
157287285873 is a `hidden beast` number, since 1 + 5 + 7 + 28 + 7 + 28 + 587 + 3 = 666.
It is not a de Polignac number, because 157287285873 - 29 = 157287285361 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 157287285873.
It is not an unprimeable number, because it can be changed into a prime (157287285473) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9218703 + ... + 9235748.
It is an arithmetic number, because the mean of its divisors is an integer number (18952722204).
Almost surely, 2157287285873 is an apocalyptic number.
It is an amenable number.
157287285873 is a deficient number, since it is larger than the sum of its proper divisors (70145380575).
157287285873 is a wasteful number, since it uses less digits than its factorization.
157287285873 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18455404 (or 18455401 counting only the distinct ones).
The product of its digits is 52684800, while the sum is 63.
The spelling of 157287285873 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, two hundred eighty-five thousand, eight hundred seventy-three".
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