Search a number
-
+
8495139 = 38931817
BaseRepresentation
bin100000011010…
…000000100011
3120222121010210
4200122000203
54133321024
6502025203
7132131112
oct40320043
916877123
108495139
114882584
122a18203
1319b5913
1411b1c79
15b2c129
hex81a023

8495139 has 8 divisors (see below), whose sum is σ = 11454480. Its totient is φ = 5599616.

The previous prime is 8495129. The next prime is 8495141. The reversal of 8495139 is 9315948.

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 8495139 - 29 = 8494627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8495097 and 8495106.

It is not an unprimeable number, because it can be changed into a prime (8495129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15642 + ... + 16175.

It is an arithmetic number, because the mean of its divisors is an integer number (1431810).

Almost surely, 28495139 is an apocalyptic number.

8495139 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

8495139 is a deficient number, since it is larger than the sum of its proper divisors (2959341).

8495139 is a wasteful number, since it uses less digits than its factorization.

8495139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31909.

The product of its digits is 38880, while the sum is 39.

The square root of 8495139 is about 2914.6421735781. The cubic root of 8495139 is about 204.0438439020.

The spelling of 8495139 in words is "eight million, four hundred ninety-five thousand, one hundred thirty-nine".

Divisors: 1 3 89 267 31817 95451 2831713 8495139