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8130207 = 34995431
BaseRepresentation
bin11111000000111010011111
3120022001112210
4133000322133
54040131312
6450131503
7126051141
oct37007237
916261483
108130207
114653388
122880b93
1318b8797
141118c91
15aa8e3c
hex7c0e9f

8130207 has 8 divisors (see below), whose sum is σ = 10864000. Its totient is φ = 5408280.

The previous prime is 8130193. The next prime is 8130251. The reversal of 8130207 is 7020318.

8130207 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8130207 - 24 = 8130191 is a prime.

It is a super-2 number, since 2×81302072 = 132200531725698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8130007) 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, 1219 + ... + 4212.

It is an arithmetic number, because the mean of its divisors is an integer number (1358000).

Almost surely, 28130207 is an apocalyptic number.

8130207 is a deficient number, since it is larger than the sum of its proper divisors (2733793).

8130207 is a wasteful number, since it uses less digits than its factorization.

8130207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 8130207 is about 2851.3517846804. The cubic root of 8130207 is about 201.0792242336.

The spelling of 8130207 in words is "eight million, one hundred thirty thousand, two hundred seven".

Divisors: 1 3 499 1497 5431 16293 2710069 8130207