Base | Representation |
---|---|
bin | 1110101100010101… |
… | …01110101100100001 |
3 | 202100201212012202100 |
4 | 13112022232230201 |
5 | 112123323313400 |
6 | 3342421241013 |
7 | 366321531261 |
oct | 72612565441 |
9 | 22321765670 |
10 | 7888104225 |
11 | 33886a1501 |
12 | 1641863169 |
13 | 9892c5bc1 |
14 | 54b89b7a1 |
15 | 312796100 |
hex | 1d62aeb21 |
7888104225 has 81 divisors (see below), whose sum is σ = 14675764467. Its totient is φ = 4049964000.
The previous prime is 7888104199. The next prime is 7888104241. The reversal of 7888104225 is 5224018887.
It is a happy number.
The square root of 7888104225 is 88815.
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., 2839717521 + 5048386704 = 53289^2 + 71052^2 .
It is not a de Polignac number, because 7888104225 - 217 = 7887973153 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 41298880 + ... + 41299070.
Almost surely, 27888104225 is an apocalyptic number.
7888104225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
7888104225 is the 88815-th square number.
7888104225 is the 44408-th centered octagonal number.
It is an amenable number.
7888104225 is a deficient number, since it is larger than the sum of its proper divisors (6787660242).
7888104225 is a wasteful number, since it uses less digits than its factorization.
7888104225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 460 (or 230 counting only the distinct ones).
The product of its (nonzero) digits is 286720, while the sum is 45.
The cubic root of 7888104225 is about 1990.6315365507.
The spelling of 7888104225 in words is "seven billion, eight hundred eighty-eight million, one hundred four thousand, two hundred twenty-five".
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