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234040442 = 21940115359
BaseRepresentation
bin11011111001100…
…10110001111010
3121022101111010112
431330302301322
5434403243232
635120144322
75541211436
oct1574626172
9538344115
10234040442
11110123059
12664680a2
133964538c
14231239c6
15158304b2
hexdf32c7a

234040442 has 16 divisors (see below), whose sum is σ = 370483200. Its totient is φ = 110577600.

The previous prime is 234040441. The next prime is 234040451. The reversal of 234040442 is 244040432.

It is not an unprimeable number, because it can be changed into a prime (234040441) 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, 7559 + ... + 22917.

It is an arithmetic number, because the mean of its divisors is an integer number (23155200).

Almost surely, 2234040442 is an apocalyptic number.

234040442 is a deficient number, since it is larger than the sum of its proper divisors (136442758).

234040442 is a wasteful number, since it uses less digits than its factorization.

234040442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15781.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 234040442 is about 15298.3803717910. The cubic root of 234040442 is about 616.2595132023.

Adding to 234040442 its reverse (244040432), we get a palindrome (478080874).

The spelling of 234040442 in words is "two hundred thirty-four million, forty thousand, four hundred forty-two".

Divisors: 1 2 19 38 401 802 7619 15238 15359 30718 291821 583642 6158959 12317918 117020221 234040442