Base | Representation |
---|---|
bin | 100100111010000… |
… | …0100100110000010 |
3 | 10012022020120200221 |
4 | 1021310010212002 |
5 | 10014011341244 |
6 | 322514533254 |
7 | 42455054641 |
oct | 11164044602 |
9 | 3168216627 |
10 | 1238387074 |
11 | 5860455a1 |
12 | 2a689722a |
13 | 169744b22 |
14 | ba683358 |
15 | 73abe784 |
hex | 49d04982 |
1238387074 has 16 divisors (see below), whose sum is σ = 1867824000. Its totient is φ = 615787920.
The previous prime is 1238387071. The next prime is 1238387093. The reversal of 1238387074 is 4707838321.
It is an alternating number because its digits alternate between odd and even.
It is a self number, because there is not a number n which added to its sum of digits gives 1238387074.
It is not an unprimeable number, because it can be changed into a prime (1238387071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352177 + ... + 355675.
It is an arithmetic number, because the mean of its divisors is an integer number (116739000).
Almost surely, 21238387074 is an apocalyptic number.
1238387074 is a deficient number, since it is larger than the sum of its proper divisors (629436926).
1238387074 is a wasteful number, since it uses less digits than its factorization.
1238387074 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4425.
The product of its (nonzero) digits is 225792, while the sum is 43.
The square root of 1238387074 is about 35190.7242608049. The cubic root of 1238387074 is about 1073.8710553813.
The spelling of 1238387074 in words is "one billion, two hundred thirty-eight million, three hundred eighty-seven thousand, seventy-four".
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