Base | Representation |
---|---|
bin | 10100000111011… |
… | …10011110001010 |
3 | 102202112100000200 |
4 | 22003232132022 |
5 | 321144431223 |
6 | 24424513030 |
7 | 4116225261 |
oct | 1203563612 |
9 | 382470020 |
10 | 168748938 |
11 | 87288636 |
12 | 4861b776 |
13 | 28c64a57 |
14 | 185a95d8 |
15 | ec34a43 |
hex | a0ee78a |
168748938 has 48 divisors (see below), whose sum is σ = 371001696. Its totient is φ = 55429920.
The previous prime is 168748933. The next prime is 168748939. The reversal of 168748938 is 839847861.
168748938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1687489382 = 56952408152255688, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (168748933) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 596145 + ... + 596427.
It is an arithmetic number, because the mean of its divisors is an integer number (7729202).
Almost surely, 2168748938 is an apocalyptic number.
168748938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
168748938 is an abundant number, since it is smaller than the sum of its proper divisors (202252758).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
168748938 is a wasteful number, since it uses less digits than its factorization.
168748938 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 659 (or 656 counting only the distinct ones).
The product of its digits is 2322432, while the sum is 54.
The square root of 168748938 is about 12990.3401803032. The cubic root of 168748938 is about 552.6035655517.
It can be divided in two parts, 1687 and 48938, that added together give a 4-th power (50625 = 154).
The spelling of 168748938 in words is "one hundred sixty-eight million, seven hundred forty-eight thousand, nine hundred thirty-eight".
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