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234749990 = 2561738047
BaseRepresentation
bin11011111111000…
…00000000100110
3121100201112110002
431333200000212
5440043444430
635143301302
75550225206
oct1577400046
9540645402
10234749990
11110568162
126674a832
1339833327
142326a406
1515920845
hexdfe0026

234749990 has 16 divisors (see below), whose sum is σ = 423245952. Its totient is φ = 93745344.

The previous prime is 234749987. The next prime is 234750017. The reversal of 234749990 is 99947432.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 12854 + ... + 25193.

It is an arithmetic number, because the mean of its divisors is an integer number (26452872).

Almost surely, 2234749990 is an apocalyptic number.

234749990 is a deficient number, since it is larger than the sum of its proper divisors (188495962).

234749990 is a wasteful number, since it uses less digits than its factorization.

234749990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38671.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 234749990 is about 15321.5531197069. The cubic root of 234749990 is about 616.8816628804.

The spelling of 234749990 in words is "two hundred thirty-four million, seven hundred forty-nine thousand, nine hundred ninety".

Divisors: 1 2 5 10 617 1234 3085 6170 38047 76094 190235 380470 23474999 46949998 117374995 234749990