Base | Representation |
---|---|
bin | 111011010111101… |
… | …1100000101100101 |
3 | 12010211120120100101 |
4 | 1312233130011211 |
5 | 13034442203201 |
6 | 525402344101 |
7 | 100236654424 |
oct | 16657340545 |
9 | 5124516311 |
10 | 1992147301 |
11 | 932573831 |
12 | 4771bb031 |
13 | 259957cb1 |
14 | 14c8132bb |
15 | b9d60d01 |
hex | 76bdc165 |
1992147301 has 4 divisors (see below), whose sum is σ = 2038476352. Its totient is φ = 1945818252.
The previous prime is 1992147299. The next prime is 1992147337. The reversal of 1992147301 is 1037412991.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 1992147301 - 21 = 1992147299 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1992147371) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23164461 + ... + 23164546.
It is an arithmetic number, because the mean of its divisors is an integer number (509619088).
Almost surely, 21992147301 is an apocalyptic number.
It is an amenable number.
1992147301 is a deficient number, since it is larger than the sum of its proper divisors (46329051).
1992147301 is an equidigital number, since it uses as much as digits as its factorization.
1992147301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46329050.
The product of its (nonzero) digits is 13608, while the sum is 37.
The square root of 1992147301 is about 44633.4773572483. The cubic root of 1992147301 is about 1258.2699235779.
The spelling of 1992147301 in words is "one billion, nine hundred ninety-two million, one hundred forty-seven thousand, three hundred one".
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