Base | Representation |
---|---|
bin | 1111100110011… |
… | …10101000111001 |
3 | 100010020212122021 |
4 | 13303032220321 |
5 | 232000313232 |
6 | 20552554441 |
7 | 3146242441 |
oct | 763165071 |
9 | 303225567 |
10 | 130869817 |
11 | 67966481 |
12 | 379b2a21 |
13 | 21161680 |
14 | 13549121 |
15 | b751397 |
hex | 7ccea39 |
130869817 has 16 divisors (see below), whose sum is σ = 146685952. Its totient is φ = 115940160.
The previous prime is 130869811. The next prime is 130869821. The reversal of 130869817 is 718968031.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130869817 is a prime.
It is a super-2 number, since 2×1308698172 = 34253818003226978, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130869811) 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, 49903 + ... + 52459.
It is an arithmetic number, because the mean of its divisors is an integer number (9167872).
Almost surely, 2130869817 is an apocalyptic number.
It is an amenable number.
130869817 is a deficient number, since it is larger than the sum of its proper divisors (15816135).
130869817 is a wasteful number, since it uses less digits than its factorization.
130869817 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2728.
The product of its (nonzero) digits is 72576, while the sum is 43.
The square root of 130869817 is about 11439.8346578961. The cubic root of 130869817 is about 507.7070160963.
The spelling of 130869817 in words is "one hundred thirty million, eight hundred sixty-nine thousand, eight hundred seventeen".
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