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2215230242 = 21107615121
BaseRepresentation
bin1000010000001001…
…1011101100100010
312201101100100121112
42010002123230202
514014044331432
61003452023322
7105616101131
oct20402335442
95641310545
102215230242
11a374922a5
12519a61b42
13293c34a34
141702c3918
15ce7297b2
hex8409bb22

2215230242 has 4 divisors (see below), whose sum is σ = 3322845366. Its totient is φ = 1107615120.

The previous prime is 2215230229. The next prime is 2215230247. The reversal of 2215230242 is 2420325122.

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., 2186404081 + 28826161 = 46759^2 + 5369^2 .

It is not an unprimeable number, because it can be changed into a prime (2215230247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553807559 + ... + 553807562.

Almost surely, 22215230242 is an apocalyptic number.

2215230242 is a deficient number, since it is larger than the sum of its proper divisors (1107615124).

2215230242 is a wasteful number, since it uses less digits than its factorization.

2215230242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107615123.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2215230242 is about 47066.2325027190. The cubic root of 2215230242 is about 1303.5858086001.

Adding to 2215230242 its reverse (2420325122), we get a palindrome (4635555364).

The spelling of 2215230242 in words is "two billion, two hundred fifteen million, two hundred thirty thousand, two hundred forty-two".

Divisors: 1 2 1107615121 2215230242