Base | Representation |
---|---|
bin | 1011000100000110110… |
… | …01100100000001000100 |
3 | 1100100021010012012001000 |
4 | 11202003121210001010 |
5 | 22212032334412333 |
6 | 450351023133300 |
7 | 36315521416203 |
oct | 5420331440104 |
9 | 1310233165030 |
10 | 380161638468 |
11 | 137253374797 |
12 | 61817444230 |
13 | 29b065a8b91 |
14 | 1458555523a |
15 | 9d4ee5a713 |
hex | 5883664044 |
380161638468 has 48 divisors (see below), whose sum is σ = 985645805760. Its totient is φ = 126715203072.
The previous prime is 380161638407. The next prime is 380161638469. The reversal of 380161638468 is 864836161083.
380161638468 is a `hidden beast` number, since 3 + 8 + 0 + 16 + 163 + 8 + 468 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (380161638469) 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, 3140971 + ... + 3259757.
It is an arithmetic number, because the mean of its divisors is an integer number (20534287620).
Almost surely, 2380161638468 is an apocalyptic number.
It is an amenable number.
380161638468 is an abundant number, since it is smaller than the sum of its proper divisors (605484167292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380161638468 is a wasteful number, since it uses less digits than its factorization.
380161638468 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148433 (or 148425 counting only the distinct ones).
The product of its (nonzero) digits is 3981312, while the sum is 54.
The spelling of 380161638468 in words is "three hundred eighty billion, one hundred sixty-one million, six hundred thirty-eight thousand, four hundred sixty-eight".
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