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234042789 = 3292690147
BaseRepresentation
bin11011111001100…
…11010110100101
3121022101121100110
431330303112211
5434403332124
635120203233
75541221331
oct1574632645
9538347313
10234042789
111101248a2
1266469519
1339646476
14231247c1
1515831029
hexdf335a5

234042789 has 8 divisors (see below), whose sum is σ = 322817760. Its totient is φ = 150648176.

The previous prime is 234042773. The next prime is 234042799. The reversal of 234042789 is 987240432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 234042789 - 24 = 234042773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234042709) 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, 1344987 + ... + 1345160.

It is an arithmetic number, because the mean of its divisors is an integer number (40352220).

Almost surely, 2234042789 is an apocalyptic number.

234042789 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

234042789 is a deficient number, since it is larger than the sum of its proper divisors (88774971).

234042789 is a wasteful number, since it uses less digits than its factorization.

234042789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690179.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 234042789 is about 15298.4570790652. The cubic root of 234042789 is about 616.2615731828.

The spelling of 234042789 in words is "two hundred thirty-four million, forty-two thousand, seven hundred eighty-nine".

Divisors: 1 3 29 87 2690147 8070441 78014263 234042789