Search a number
-
+
30346143 = 310115381
BaseRepresentation
bin111001111000…
…0101110011111
32010002202002020
41303300232133
530232034033
63002231223
7515636502
oct163605637
963082066
1030346143
1116147563
12a1b5513
1363966c9
14405d139
1529e66b3
hex1cf0b9f

30346143 has 4 divisors (see below), whose sum is σ = 40461528. Its totient is φ = 20230760.

The previous prime is 30346133. The next prime is 30346187. The reversal of 30346143 is 34164303.

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 30346143 - 25 = 30346111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30346123) 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, 5057688 + ... + 5057693.

It is an arithmetic number, because the mean of its divisors is an integer number (10115382).

Almost surely, 230346143 is an apocalyptic number.

30346143 is a deficient number, since it is larger than the sum of its proper divisors (10115385).

30346143 is a wasteful number, since it uses less digits than its factorization.

30346143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10115384.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 30346143 is about 5508.7333389809. The cubic root of 30346143 is about 311.9137356021.

The spelling of 30346143 in words is "thirty million, three hundred forty-six thousand, one hundred forty-three".

Divisors: 1 3 10115381 30346143