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30894199 = 74413457
BaseRepresentation
bin111010111011…
…0100001110111
32011010120212121
41311312201313
530402103244
63022100411
7523411360
oct165664167
964116777
1030894199
11164912a6
12a41a707
136528cbb
144162b67
152aa3c84
hex1d76877

30894199 has 4 divisors (see below), whose sum is σ = 35307664. Its totient is φ = 26480736.

The previous prime is 30894187. The next prime is 30894233. The reversal of 30894199 is 99149803.

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

It is a cyclic number.

It is not a de Polignac number, because 30894199 - 213 = 30886007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30894119) 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, 2206722 + ... + 2206735.

It is an arithmetic number, because the mean of its divisors is an integer number (8826916).

Almost surely, 230894199 is an apocalyptic number.

30894199 is a deficient number, since it is larger than the sum of its proper divisors (4413465).

30894199 is an equidigital number, since it uses as much as digits as its factorization.

30894199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413464.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 30894199 is about 5558.2550319322. The cubic root of 30894199 is about 313.7802802476.

The spelling of 30894199 in words is "thirty million, eight hundred ninety-four thousand, one hundred ninety-nine".

Divisors: 1 7 4413457 30894199