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230402 = 2115201
BaseRepresentation
bin111000010000000010
3102201001102
4320100002
524333102
64534402
71646504
oct702002
9381042
10230402
11148117
12b1402
1380b43
145dd74
1548402
hex38402

230402 has 4 divisors (see below), whose sum is σ = 345606. Its totient is φ = 115200.

The previous prime is 230393. The next prime is 230431. The reversal of 230402 is 204032.

Adding to 230402 its reverse (204032), we get a palindrome (434434).

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., 229441 + 961 = 479^2 + 31^2 .

It is an unprimeable number.

230402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57599 + ... + 57602.

2230402 is an apocalyptic number.

230402 is a deficient number, since it is larger than the sum of its proper divisors (115204).

230402 is a wasteful number, since it uses less digits than its factorization.

230402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115203.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 230402 is about 480.0020833288. The cubic root of 230402 is about 61.3049319774.

The spelling of 230402 in words is "two hundred thirty thousand, four hundred two".

Divisors: 1 2 115201 230402