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233140044 = 22319798621
BaseRepresentation
bin11011110010101…
…10111101001100
3121020200202000110
431321112331030
5434140440134
635045000020
75530441404
oct1571267514
9536622013
10233140044
1110a668625
12660b3010
13393bb5b7
1422d6b804
15157037e9
hexde56f4c

233140044 has 24 divisors (see below), whose sum is σ = 546760368. Its totient is φ = 77318080.

The previous prime is 233140043. The next prime is 233140079. The reversal of 233140044 is 440041332.

It is a self number, because there is not a number n which added to its sum of digits gives 233140044.

It is not an unprimeable number, because it can be changed into a prime (233140043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46947 + ... + 51674.

It is an arithmetic number, because the mean of its divisors is an integer number (22781682).

Almost surely, 2233140044 is an apocalyptic number.

It is an amenable number.

233140044 is an abundant number, since it is smaller than the sum of its proper divisors (313620324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233140044 is a wasteful number, since it uses less digits than its factorization.

233140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98825 (or 98823 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 233140044 is about 15268.9241271283. The cubic root of 233140044 is about 615.4682084632.

Adding to 233140044 its reverse (440041332), we get a palindrome (673181376).

The spelling of 233140044 in words is "two hundred thirty-three million, one hundred forty thousand, forty-four".

Divisors: 1 2 3 4 6 12 197 394 591 788 1182 2364 98621 197242 295863 394484 591726 1183452 19428337 38856674 58285011 77713348 116570022 233140044