Search a number
-
+
30385622 = 223660557
BaseRepresentation
bin111001111101…
…0010111010110
32010011202020102
41303322113112
530234314442
63003134102
7516162551
oct163722726
963152212
1030385622
1116174193
12a214332
1363ab677
14406d698
152a03232
hex1cfa5d6

30385622 has 8 divisors (see below), whose sum is σ = 47560176. Its totient is φ = 14532232.

The previous prime is 30385609. The next prime is 30385627. The reversal of 30385622 is 22658303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30385627) 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, 330233 + ... + 330324.

It is an arithmetic number, because the mean of its divisors is an integer number (5945022).

Almost surely, 230385622 is an apocalyptic number.

30385622 is a deficient number, since it is larger than the sum of its proper divisors (17174554).

30385622 is a wasteful number, since it uses less digits than its factorization.

30385622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660582.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 30385622 is about 5512.3154844403. The cubic root of 30385622 is about 312.0489390140.

The spelling of 30385622 in words is "thirty million, three hundred eighty-five thousand, six hundred twenty-two".

Divisors: 1 2 23 46 660557 1321114 15192811 30385622