Base | Representation |
---|---|
bin | 1101000001111101100… |
… | …0011100101010010010 |
3 | 210101211112010020022200 |
4 | 3100133120130222102 |
5 | 12131433342130223 |
6 | 250501515344030 |
7 | 22113402264021 |
oct | 3203730345222 |
9 | 711745106280 |
10 | 223864801938 |
11 | 86a38932108 |
12 | 37477a52016 |
13 | 181585cca5b |
14 | ab997a68b8 |
15 | 5c5365ba43 |
hex | 341f61ca92 |
223864801938 has 18 divisors (see below), whose sum is σ = 485044753557. Its totient is φ = 74620931520.
The previous prime is 223864801931. The next prime is 223864801973. The reversal of 223864801938 is 839108468322.
It can be written as a sum of positive squares in 2 ways, for example, as 223225066089 + 639735849 = 472467^2 + 25293^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=334563.
It is not an unprimeable number, because it can be changed into a prime (223864801931) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1951618 + ... + 2063138.
Almost surely, 2223864801938 is an apocalyptic number.
223864801938 is an abundant number, since it is smaller than the sum of its proper divisors (261179951619).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223864801938 is an frugal number, since it uses more digits than its factorization.
223864801938 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 223050 (or 111526 counting only the distinct ones).
The product of its (nonzero) digits is 3981312, while the sum is 54.
The spelling of 223864801938 in words is "two hundred twenty-three billion, eight hundred sixty-four million, eight hundred one thousand, nine hundred thirty-eight".
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