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8970145 = 51794029
BaseRepresentation
bin100010001101…
…111110100001
3121212201201121
4202031332201
54244021040
6520132241
7136150012
oct42157641
917781647
108970145
115077448
123007081
131b20ba2
141297009
15bc2c4a
hex88dfa1

8970145 has 4 divisors (see below), whose sum is σ = 10764180. Its totient is φ = 7176112.

The previous prime is 8970139. The next prime is 8970163. The reversal of 8970145 is 5410798.

It is a happy number.

8970145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2298256 + 6671889 = 1516^2 + 2583^2 .

It is a cyclic number.

It is not a de Polignac number, because 8970145 - 215 = 8937377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8970145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897010 + ... + 897019.

It is an arithmetic number, because the mean of its divisors is an integer number (2691045).

Almost surely, 28970145 is an apocalyptic number.

It is an amenable number.

8970145 is a deficient number, since it is larger than the sum of its proper divisors (1794035).

8970145 is a wasteful number, since it uses less digits than its factorization.

8970145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794034.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 8970145 is about 2995.0200333220. The cubic root of 8970145 is about 207.7781241687.

The spelling of 8970145 in words is "eight million, nine hundred seventy thousand, one hundred forty-five".

Divisors: 1 5 1794029 8970145