Base | Representation |
---|---|
bin | 10010100111110… |
… | …010001011111111 |
3 | 210202212112101201 |
4 | 102213302023333 |
5 | 1114434402241 |
6 | 51000120331 |
7 | 10512342526 |
oct | 2247621377 |
9 | 722775351 |
10 | 312419071 |
11 | 150397088 |
12 | 887660a7 |
13 | 4c958773 |
14 | 2d6c74bd |
15 | 1c663931 |
hex | 129f22ff |
312419071 has 4 divisors (see below), whose sum is σ = 328862200. Its totient is φ = 295975944.
The previous prime is 312419069. The next prime is 312419077. The reversal of 312419071 is 170914213.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170914213 = 137 ⋅1247549.
It is a cyclic number.
It is not a de Polignac number, because 312419071 - 21 = 312419069 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 (312419077) 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, 8221536 + ... + 8221573.
It is an arithmetic number, because the mean of its divisors is an integer number (82215550).
Almost surely, 2312419071 is an apocalyptic number.
312419071 is a deficient number, since it is larger than the sum of its proper divisors (16443129).
312419071 is a wasteful number, since it uses less digits than its factorization.
312419071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16443128.
The product of its (nonzero) digits is 1512, while the sum is 28.
The square root of 312419071 is about 17675.3803636584. The cubic root of 312419071 is about 678.5458190636.
The spelling of 312419071 in words is "three hundred twelve million, four hundred nineteen thousand, seventy-one".
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