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230204042 = 2115102021
BaseRepresentation
bin11011011100010…
…10001010001010
3121001011120120122
431232022022022
5432413012132
634502023242
75463462545
oct1556121212
9531146518
10230204042
11108a42782
1265117b22
1338901113
142280585c
1515323912
hexdb8a28a

230204042 has 4 divisors (see below), whose sum is σ = 345306066. Its totient is φ = 115102020.

The previous prime is 230204041. The next prime is 230204129. The reversal of 230204042 is 240402032.

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., 228040201 + 2163841 = 15101^2 + 1471^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 230204042.

It is not an unprimeable number, because it can be changed into a prime (230204041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57551009 + ... + 57551012.

Almost surely, 2230204042 is an apocalyptic number.

230204042 is a deficient number, since it is larger than the sum of its proper divisors (115102024).

230204042 is a wasteful number, since it uses less digits than its factorization.

230204042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115102023.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 230204042 is about 15172.4764623314. The cubic root of 230204042 is about 612.8736951555.

Adding to 230204042 its reverse (240402032), we get a palindrome (470606074).

The spelling of 230204042 in words is "two hundred thirty million, two hundred four thousand, forty-two".

Divisors: 1 2 115102021 230204042