Base | Representation |
---|---|
bin | 10111001001100… |
… | …000001100100110 |
3 | 1000001210002120020 |
4 | 113021200030212 |
5 | 1243410222032 |
6 | 102312020010 |
7 | 12424031502 |
oct | 2711401446 |
9 | 1001702506 |
10 | 388367142 |
11 | 18a24aa89 |
12 | aa091606 |
13 | 625ca757 |
14 | 39817302 |
15 | 24166b2c |
hex | 17260326 |
388367142 has 32 divisors (see below), whose sum is σ = 841560192. Its totient is φ = 119005824.
The previous prime is 388367141. The next prime is 388367153. The reversal of 388367142 is 241763883.
It is a junction number, because it is equal to n+sod(n) for n = 388367094 and 388367103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (388367141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39888 + ... + 48659.
It is an arithmetic number, because the mean of its divisors is an integer number (26298756).
Almost surely, 2388367142 is an apocalyptic number.
388367142 is an abundant number, since it is smaller than the sum of its proper divisors (453193050).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388367142 is a wasteful number, since it uses less digits than its factorization.
388367142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 88612.
The product of its digits is 193536, while the sum is 42.
The square root of 388367142 is about 19707.0328055748. The cubic root of 388367142 is about 729.5932819155.
The spelling of 388367142 in words is "three hundred eighty-eight million, three hundred sixty-seven thousand, one hundred forty-two".
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