Base | Representation |
---|---|
bin | 1110101100111110… |
… | …00011111010101001 |
3 | 202101002212222212100 |
4 | 13112133003322221 |
5 | 112131204342100 |
6 | 3343131404013 |
7 | 366415040121 |
oct | 72637037251 |
9 | 22332788770 |
10 | 7893434025 |
11 | 33907018a4 |
12 | 16435b3609 |
13 | 98a440b29 |
14 | 54c487c81 |
15 | 312e9a400 |
hex | 1d67c3ea9 |
7893434025 has 27 divisors (see below), whose sum is σ = 14140404759. Its totient is φ = 4209120720.
The previous prime is 7893433997. The next prime is 7893434027. The reversal of 7893434025 is 5204343987.
The square root of 7893434025 is 88845.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 2841636249 + 5051797776 = 53307^2 + 71076^2 .
It is not a de Polignac number, because 7893434025 - 217 = 7893302953 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (7893434027) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1329714 + ... + 1335636.
Almost surely, 27893434025 is an apocalyptic number.
7893434025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
7893434025 is the 88845-th square number.
7893434025 is the 44423-rd centered octagonal number.
It is an amenable number.
7893434025 is a deficient number, since it is larger than the sum of its proper divisors (6246970734).
7893434025 is an frugal number, since it uses more digits than its factorization.
7893434025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11862 (or 5931 counting only the distinct ones).
The product of its (nonzero) digits is 725760, while the sum is 45.
The cubic root of 7893434025 is about 1991.0797760343.
The spelling of 7893434025 in words is "seven billion, eight hundred ninety-three million, four hundred thirty-four thousand, twenty-five".
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