Base | Representation |
---|---|
bin | 111101111001101… |
… | …011111010000111 |
3 | 2200101011220101201 |
4 | 331321223322013 |
5 | 4111331012411 |
6 | 251015203331 |
7 | 34510243522 |
oct | 7571537207 |
9 | 2611156351 |
10 | 1038532231 |
11 | 493251700 |
12 | 24b976547 |
13 | 13720b919 |
14 | 9bcdbbb9 |
15 | 612933c1 |
hex | 3de6be87 |
1038532231 has 12 divisors (see below), whose sum is σ = 1143271192. Its totient is φ = 942678000.
The previous prime is 1038532223. The next prime is 1038532241. The reversal of 1038532231 is 1322358301.
It is not a de Polignac number, because 1038532231 - 23 = 1038532223 is a prime.
It is a super-2 number, since 2×10385322312 = 2157098389651674722, which contains 22 as substring.
It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1038532231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1038532241) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77401 + ... + 89821.
Almost surely, 21038532231 is an apocalyptic number.
1038532231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1038532231 is a deficient number, since it is larger than the sum of its proper divisors (104738961).
1038532231 is a wasteful number, since it uses less digits than its factorization.
1038532231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13134 (or 13123 counting only the distinct ones).
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 1038532231 is about 32226.2661659709. The cubic root of 1038532231 is about 1012.6825499433.
The spelling of 1038532231 in words is "one billion, thirty-eight million, five hundred thirty-two thousand, two hundred thirty-one".
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