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34684820 = 2254194139
BaseRepresentation
bin1000010001001…
…1111110010100
32102021011121222
42010103332110
532334403240
63235225512
7600546632
oct204237624
972234558
1034684820
1118640245
12b748298
137255481
14486c352
1530a1eb5
hex2113f94

34684820 has 24 divisors (see below), whose sum is σ = 73029600. Its totient is φ = 13837472.

The previous prime is 34684757. The next prime is 34684829. The reversal of 34684820 is 2848643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34684829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6311 + ... + 10449.

It is an arithmetic number, because the mean of its divisors is an integer number (3042900).

Almost surely, 234684820 is an apocalyptic number.

It is an amenable number.

34684820 is an abundant number, since it is smaller than the sum of its proper divisors (38344780).

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

34684820 is a wasteful number, since it uses less digits than its factorization.

34684820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567 (or 4565 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 34684820 is about 5889.3819709711. The cubic root of 34684820 is about 326.1217882123.

The spelling of 34684820 in words is "thirty-four million, six hundred eighty-four thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 419 838 1676 2095 4139 4190 8278 8380 16556 20695 41390 82780 1734241 3468482 6936964 8671205 17342410 34684820