Search a number
-
+
8100087427 = 171049454219
BaseRepresentation
bin1111000101100110…
…11000011010000011
3202220111202002001001
413202303120122003
5113042110244202
63415432552431
7404504415145
oct74263303203
922814662031
108100087427
113487319633
1216a0852717
139c11b7653
1456babcc95
153261bad87
hex1e2cd8683

8100087427 has 8 divisors (see below), whose sum is σ = 8584758000. Its totient is φ = 7616327424.

The previous prime is 8100087407. The next prime is 8100087431. The reversal of 8100087427 is 7247800018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8100087427 - 219 = 8099563139 is a prime.

It is a super-2 number, since 2×81000874272 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8100087407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209277 + ... + 244942.

It is an arithmetic number, because the mean of its divisors is an integer number (1073094750).

Almost surely, 28100087427 is an apocalyptic number.

8100087427 is a deficient number, since it is larger than the sum of its proper divisors (484670573).

8100087427 is a wasteful number, since it uses less digits than its factorization.

8100087427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455285.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 8100087427 is about 90000.4857042450. The cubic root of 8100087427 is about 2008.3060757161.

The spelling of 8100087427 in words is "eight billion, one hundred million, eighty-seven thousand, four hundred twenty-seven".

Divisors: 1 17 1049 17833 454219 7721723 476475731 8100087427