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8135897 = 711157673
BaseRepresentation
bin11111000010010011011001
3120022100100112
4133002103121
54040322042
6450214105
7126103550
oct37022331
916270315
108135897
114657690
122884335
1318bb253
14111ad97
15aaa982
hex7c24d9

8135897 has 16 divisors (see below), whose sum is σ = 10223232. Its totient is φ = 6289920.

The previous prime is 8135891. The next prime is 8135899. The reversal of 8135897 is 7985318.

It is a happy number.

It is not a de Polignac number, because 8135897 - 26 = 8135833 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (8135891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11753 + ... + 12425.

It is an arithmetic number, because the mean of its divisors is an integer number (638952).

Almost surely, 28135897 is an apocalyptic number.

It is an amenable number.

8135897 is a deficient number, since it is larger than the sum of its proper divisors (2087335).

8135897 is a wasteful number, since it uses less digits than its factorization.

8135897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848.

The product of its digits is 60480, while the sum is 41.

The square root of 8135897 is about 2852.3493825266. The cubic root of 8135897 is about 201.1261223416.

The spelling of 8135897 in words is "eight million, one hundred thirty-five thousand, eight hundred ninety-seven".

Divisors: 1 7 11 77 157 673 1099 1727 4711 7403 12089 51821 105661 739627 1162271 8135897