Base | Representation |
---|---|
bin | 10010101001000… |
… | …001000010101010 |
3 | 210210110221110012 |
4 | 102221001002222 |
5 | 1120030221213 |
6 | 51011051522 |
7 | 10515156266 |
oct | 2251010252 |
9 | 723427405 |
10 | 312742058 |
11 | 150597812 |
12 | 888a0ba2 |
13 | 4ca3c795 |
14 | 2d76d0a6 |
15 | 1c6c94a8 |
hex | 12a410aa |
312742058 has 4 divisors (see below), whose sum is σ = 469113090. Its totient is φ = 156371028.
The previous prime is 312742057. The next prime is 312742127. The reversal of 312742058 is 850247213.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 850247213 = 43 ⋅19773191.
It can be written as a sum of positive squares in only one way, i.e., 212080969 + 100661089 = 14563^2 + 10033^2 .
It is not an unprimeable number, because it can be changed into a prime (312742057) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78185513 + ... + 78185516.
Almost surely, 2312742058 is an apocalyptic number.
312742058 is a deficient number, since it is larger than the sum of its proper divisors (156371032).
312742058 is a wasteful number, since it uses less digits than its factorization.
312742058 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 156371031.
The product of its (nonzero) digits is 13440, while the sum is 32.
The square root of 312742058 is about 17684.5146385192. The cubic root of 312742058 is about 678.7795713290.
The spelling of 312742058 in words is "three hundred twelve million, seven hundred forty-two thousand, fifty-eight".
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