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234745830 = 23351179039
BaseRepresentation
bin11011111110111…
…10111111100110
3121100201022202000
431333132333212
5440043331310
635143230130
75550210114
oct1577367746
9540638660
10234745830
11110565020
1266748346
1339831477
1423268ab4
151591e4c0
hexdfdefe6

234745830 has 64 divisors (see below), whose sum is σ = 682905600. Its totient is φ = 56907360.

The previous prime is 234745813. The next prime is 234745831. The reversal of 234745830 is 38547432.

It is a happy number.

234745830 is a `hidden beast` number, since 2 + 3 + 4 + 74 + 583 + 0 = 666.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234745831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36550 + ... + 42489.

It is an arithmetic number, because the mean of its divisors is an integer number (10670400).

Almost surely, 2234745830 is an apocalyptic number.

234745830 is an abundant number, since it is smaller than the sum of its proper divisors (448159770).

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

234745830 is a wasteful number, since it uses less digits than its factorization.

234745830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79066 (or 79060 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 234745830 is about 15321.4173626333. The cubic root of 234745830 is about 616.8780189429.

The spelling of 234745830 in words is "two hundred thirty-four million, seven hundred forty-five thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 90 99 110 135 165 198 270 297 330 495 594 990 1485 2970 79039 158078 237117 395195 474234 711351 790390 869429 1185585 1422702 1738858 2134053 2371170 2608287 3556755 4268106 4347145 5216574 7113510 7824861 8694290 10670265 13041435 15649722 21340530 23474583 26082870 39124305 46949166 78248610 117372915 234745830