Search a number
-
+
8120206325 = 527114218289
BaseRepresentation
bin1111001000000000…
…01000001111110101
3202221220121012222102
413210000020033311
5113112233100300
63421432111445
7405140420630
oct74400101765
922856535872
108120206325
113497710220
1216a7535585
139c540cc1a
14570638c17
15327d420d5
hex1e40083f5

8120206325 has 24 divisors (see below), whose sum is σ = 12553631040. Its totient is φ = 5061945600.

The previous prime is 8120206307. The next prime is 8120206363. The reversal of 8120206325 is 5236020218.

It is not a de Polignac number, because 8120206325 - 226 = 8053097461 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2107220 + ... + 2111069.

It is an arithmetic number, because the mean of its divisors is an integer number (523067960).

Almost surely, 28120206325 is an apocalyptic number.

It is an amenable number.

8120206325 is a deficient number, since it is larger than the sum of its proper divisors (4433424715).

8120206325 is a wasteful number, since it uses less digits than its factorization.

8120206325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218317 (or 4218312 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 8120206325 is about 90112.1874387699. The cubic root of 8120206325 is about 2009.9674363346.

The spelling of 8120206325 in words is "eight billion, one hundred twenty million, two hundred six thousand, three hundred twenty-five".

Divisors: 1 5 7 11 25 35 55 77 175 275 385 1925 4218289 21091445 29528023 46401179 105457225 147640115 232005895 324808253 738200575 1160029475 1624041265 8120206325