Base | Representation |
---|---|
bin | 10010000010001… |
… | …10010111000010 |
3 | 101112122222110012 |
4 | 21001012113002 |
5 | 302212030023 |
6 | 23002304522 |
7 | 3514612466 |
oct | 1101062702 |
9 | 345588405 |
10 | 151283138 |
11 | 78439296 |
12 | 427b8142 |
13 | 2545ac66 |
14 | 161404a6 |
15 | d434978 |
hex | 90465c2 |
151283138 has 4 divisors (see below), whose sum is σ = 226924710. Its totient is φ = 75641568.
The previous prime is 151283117. The next prime is 151283173. The reversal of 151283138 is 831382151.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831382151 = 439 ⋅1893809.
It can be written as a sum of positive squares in only one way, i.e., 125507209 + 25775929 = 11203^2 + 5077^2 .
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37820783 + ... + 37820786.
Almost surely, 2151283138 is an apocalyptic number.
151283138 is a deficient number, since it is larger than the sum of its proper divisors (75641572).
151283138 is an equidigital number, since it uses as much as digits as its factorization.
151283138 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75641571.
The product of its digits is 5760, while the sum is 32.
The square root of 151283138 is about 12299.7210537475. The cubic root of 151283138 is about 532.8400267561.
The spelling of 151283138 in words is "one hundred fifty-one million, two hundred eighty-three thousand, one hundred thirty-eight".
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