Base | Representation |
---|---|
bin | 1001001001111100001… |
… | …1011000010001101001 |
3 | 120000222121202222210001 |
4 | 2102133003120101221 |
5 | 10034111021121430 |
6 | 200131244223001 |
7 | 14235503604433 |
oct | 2223703302151 |
9 | 500877688701 |
10 | 157287285865 |
11 | 60783632956 |
12 | 2659723aa61 |
13 | 11aa8251128 |
14 | 7881531653 |
15 | 41587453ca |
hex | 249f0d8469 |
157287285865 has 16 divisors (see below), whose sum is σ = 199585322496. Its totient is φ = 118800777600.
The previous prime is 157287285839. The next prime is 157287285901. The reversal of 157287285865 is 568582782751.
It is not a de Polignac number, because 157287285865 - 211 = 157287283817 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 157287285797 and 157287285806.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 12368727 + ... + 12381436.
It is an arithmetic number, because the mean of its divisors is an integer number (12474082656).
Almost surely, 2157287285865 is an apocalyptic number.
It is an amenable number.
157287285865 is a deficient number, since it is larger than the sum of its proper divisors (42298036631).
157287285865 is a wasteful number, since it uses less digits than its factorization.
157287285865 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24750240.
The product of its digits is 75264000, while the sum is 64.
The spelling of 157287285865 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, two hundred eighty-five thousand, eight hundred sixty-five".
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