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30295393 = 231317191
BaseRepresentation
bin111001110010…
…0010101100001
32010000011110121
41303210111201
530223423033
63001200241
7515335522
oct163442541
963004417
1030295393
1116112417
12a190081
13637958b
144048849
1529d662d
hex1ce4561

30295393 has 4 divisors (see below), whose sum is σ = 31612608. Its totient is φ = 28978180.

The previous prime is 30295381. The next prime is 30295399. The reversal of 30295393 is 39359203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30295393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30295399) 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, 658573 + ... + 658618.

It is an arithmetic number, because the mean of its divisors is an integer number (7903152).

Almost surely, 230295393 is an apocalyptic number.

It is an amenable number.

30295393 is a deficient number, since it is larger than the sum of its proper divisors (1317215).

30295393 is a wasteful number, since it uses less digits than its factorization.

30295393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317214.

The product of its (nonzero) digits is 21870, while the sum is 34.

The square root of 30295393 is about 5504.1250894216. The cubic root of 30295393 is about 311.7397601195.

The spelling of 30295393 in words is "thirty million, two hundred ninety-five thousand, three hundred ninety-three".

Divisors: 1 23 1317191 30295393