Base | Representation |
---|---|
bin | 11101111111011110111… |
… | …11010111101110100101 |
3 | 10122111221101002021022000 |
4 | 32333233133113232211 |
5 | 113340443340141041 |
6 | 2105225004155513 |
7 | 134311061230662 |
oct | 16775737275645 |
9 | 3574841067260 |
10 | 1030515162021 |
11 | 368047a41864 |
12 | 147879538b99 |
13 | 7623c2c4027 |
14 | 37c3d072a69 |
15 | 1bc15700bb6 |
hex | efef7d7ba5 |
1030515162021 has 16 divisors (see below), whose sum is σ = 1527151753920. Its totient is φ = 686801926800.
The previous prime is 1030515161927. The next prime is 1030515162029. The reversal of 1030515162021 is 1202615150301.
1030515162021 is a `hidden beast` number, since 1 + 0 + 3 + 0 + 5 + 15 + 1 + 620 + 21 = 666.
It is not a de Polignac number, because 1030515162021 - 29 = 1030515161509 is a prime.
It is a super-2 number, since 2×10305151620212 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030515162029) 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, 5692035 + ... + 5870288.
It is an arithmetic number, because the mean of its divisors is an integer number (95446984620).
Almost surely, 21030515162021 is an apocalyptic number.
It is an amenable number.
1030515162021 is a deficient number, since it is larger than the sum of its proper divisors (496636591899).
1030515162021 is a wasteful number, since it uses less digits than its factorization.
1030515162021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11565633 (or 11565627 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 27.
The spelling of 1030515162021 in words is "one trillion, thirty billion, five hundred fifteen million, one hundred sixty-two thousand, twenty-one".
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