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18630314 = 237251761
BaseRepresentation
bin100011100010…
…0011010101010
31022001111222122
41013010122222
514232132224
61503151242
7314232533
oct107043252
938044878
1018630314
11a57525a
1262a5522
133b23b71
14268d68a
15198015e
hex11c46aa

18630314 has 8 divisors (see below), whose sum is σ = 28700868. Its totient is φ = 9063360.

The previous prime is 18630301. The next prime is 18630319. The reversal of 18630314 is 41303681.

It can be written as a sum of positive squares in 2 ways, for example, as 18344089 + 286225 = 4283^2 + 535^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18630319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125807 + ... + 125954.

Almost surely, 218630314 is an apocalyptic number.

18630314 is a deficient number, since it is larger than the sum of its proper divisors (10070554).

18630314 is a wasteful number, since it uses less digits than its factorization.

18630314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251800.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 18630314 is about 4316.2847450093. The cubic root of 18630314 is about 265.0981670242.

Adding to 18630314 its reverse (41303681), we get a palindrome (59933995).

The spelling of 18630314 in words is "eighteen million, six hundred thirty thousand, three hundred fourteen".

Divisors: 1 2 37 74 251761 503522 9315157 18630314