Search a number
-
+
30258242 = 272161303
BaseRepresentation
bin111001101101…
…1010001000010
32002221021111122
41303123101002
530221230432
63000312242
7515122310
oct163332102
962837448
1030258242
1116097513
12a172682
1363656b1
1440390b0
1529ca612
hex1cdb442

30258242 has 8 divisors (see below), whose sum is σ = 51871296. Its totient is φ = 12967812.

The previous prime is 30258233. The next prime is 30258247. The reversal of 30258242 is 24285203.

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

It is a super-2 number, since 2×302582422 = 1831122417861128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30258247) 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, 1080638 + ... + 1080665.

It is an arithmetic number, because the mean of its divisors is an integer number (6483912).

Almost surely, 230258242 is an apocalyptic number.

30258242 is a deficient number, since it is larger than the sum of its proper divisors (21613054).

30258242 is a wasteful number, since it uses less digits than its factorization.

30258242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161312.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 30258242 is about 5500.7492216970. The cubic root of 30258242 is about 311.6122799981.

It can be divided in two parts, 30258 and 242, that multiplied together give a square (7322436 = 27062).

The spelling of 30258242 in words is "thirty million, two hundred fifty-eight thousand, two hundred forty-two".

Divisors: 1 2 7 14 2161303 4322606 15129121 30258242