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8380199 = 31270329
BaseRepresentation
bin11111111101111100100111
3120202202110202
4133331330213
54121131244
6455341115
7131142032
oct37757447
916682422
108380199
114804193
12298179b
1319754c9
141182019
15b0804e
hex7fdf27

8380199 has 4 divisors (see below), whose sum is σ = 8650560. Its totient is φ = 8109840.

The previous prime is 8380139. The next prime is 8380213. The reversal of 8380199 is 9910838.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8380199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8380109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135134 + ... + 135195.

It is an arithmetic number, because the mean of its divisors is an integer number (2162640).

Almost surely, 28380199 is an apocalyptic number.

8380199 is a deficient number, since it is larger than the sum of its proper divisors (270361).

8380199 is a wasteful number, since it uses less digits than its factorization.

8380199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270360.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 8380199 is about 2894.8573367266. The cubic root of 8380199 is about 203.1194181977.

The spelling of 8380199 in words is "eight million, three hundred eighty thousand, one hundred ninety-nine".

Divisors: 1 31 270329 8380199