Base | Representation |
---|---|
bin | 10110101010011… |
… | …001000011001010 |
3 | 222111102201222210 |
4 | 112222121003022 |
5 | 1234313231102 |
6 | 101421125550 |
7 | 12264513024 |
oct | 2652310312 |
9 | 874381883 |
10 | 380211402 |
11 | 18568a4aa |
12 | a73b98b6 |
13 | 60a0347c |
14 | 386d3014 |
15 | 235a536c |
hex | 16a990ca |
380211402 has 32 divisors (see below), whose sum is σ = 793900800. Its totient is φ = 121238208.
The previous prime is 380211401. The next prime is 380211407. The reversal of 380211402 is 204112083.
It is not an unprimeable number, because it can be changed into a prime (380211401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8943 + ... + 28989.
It is an arithmetic number, because the mean of its divisors is an integer number (24809400).
Almost surely, 2380211402 is an apocalyptic number.
380211402 is an abundant number, since it is smaller than the sum of its proper divisors (413689398).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380211402 is a wasteful number, since it uses less digits than its factorization.
380211402 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20190.
The product of its (nonzero) digits is 384, while the sum is 21.
The square root of 380211402 is about 19499.0102825759. The cubic root of 380211402 is about 724.4499367912.
Adding to 380211402 its reverse (204112083), we get a palindrome (584323485).
The spelling of 380211402 in words is "three hundred eighty million, two hundred eleven thousand, four hundred two".
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