Base | Representation |
---|---|
bin | 1000101110110101… |
… | …11011001011000101 |
3 | 110002201010001202002 |
4 | 10113122323023011 |
5 | 34100100321011 |
6 | 2053101555045 |
7 | 224112334652 |
oct | 42732731305 |
9 | 13081101662 |
10 | 4687901381 |
11 | 1a9621a769 |
12 | aa9b75a85 |
13 | 5992b5c57 |
14 | 32685cc29 |
15 | 1c6857c3b |
hex | 1176bb2c5 |
4687901381 has 2 divisors, whose sum is σ = 4687901382. Its totient is φ = 4687901380.
The previous prime is 4687901341. The next prime is 4687901399. The reversal of 4687901381 is 1831097864.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2519136481 + 2168764900 = 50191^2 + 46570^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-4687901381 is a prime.
It is a super-2 number, since 2×46879013812 = 43952838715963414322, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (4687901311) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343950690 + 2343950691.
It is an arithmetic number, because the mean of its divisors is an integer number (2343950691).
Almost surely, 24687901381 is an apocalyptic number.
It is an amenable number.
4687901381 is a deficient number, since it is larger than the sum of its proper divisors (1).
4687901381 is an equidigital number, since it uses as much as digits as its factorization.
4687901381 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 290304, while the sum is 47.
The square root of 4687901381 is about 68468.2508977701. The cubic root of 4687901381 is about 1673.6301423162.
The spelling of 4687901381 in words is "four billion, six hundred eighty-seven million, nine hundred one thousand, three hundred eighty-one".
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