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30302242 = 215151121
BaseRepresentation
bin111001110011…
…0000000100010
32010000111212021
41303212000202
530224132432
63001252054
7515364505
oct163460042
963014767
1030302242
1116117583
12a19402a
13637c729
14404b13c
1529d8697
hex1ce6022

30302242 has 4 divisors (see below), whose sum is σ = 45453366. Its totient is φ = 15151120.

The previous prime is 30302219. The next prime is 30302249. The reversal of 30302242 is 24220303.

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

It can be written as a sum of positive squares in only one way, i.e., 17564481 + 12737761 = 4191^2 + 3569^2 .

It is not an unprimeable number, because it can be changed into a prime (30302249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7575559 + ... + 7575562.

Almost surely, 230302242 is an apocalyptic number.

30302242 is a deficient number, since it is larger than the sum of its proper divisors (15151124).

30302242 is a wasteful number, since it uses less digits than its factorization.

30302242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15151123.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30302242 is about 5504.7472239877. The cubic root of 30302242 is about 311.7632504319.

Adding to 30302242 its reverse (24220303), we get a palindrome (54522545).

The spelling of 30302242 in words is "thirty million, three hundred two thousand, two hundred forty-two".

Divisors: 1 2 15151121 30302242