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2108420568 = 233229283619
BaseRepresentation
bin111110110101011…
…1111000111011000
312102221100212021200
41331222333013120
513304223424233
6545114434200
7103151164512
oct17552770730
95387325250
102108420568
1199216a641
124aa132960
13277a78847
1416003cbb2
15c517c313
hex7dabf1d8

2108420568 has 24 divisors (see below), whose sum is σ = 5710305900. Its totient is φ = 702806832.

The previous prime is 2108420549. The next prime is 2108420569. The reversal of 2108420568 is 8650248012.

2108420568 is a `hidden beast` number, since 2 + 10 + 84 + 2 + 0 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108420569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14641738 + ... + 14641881.

Almost surely, 22108420568 is an apocalyptic number.

It is an amenable number.

2108420568 is an abundant number, since it is smaller than the sum of its proper divisors (3601885332).

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

2108420568 is a wasteful number, since it uses less digits than its factorization.

2108420568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29283631 (or 29283624 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 2108420568 is about 45917.5409620332. The cubic root of 2108420568 is about 1282.2885019954.

The spelling of 2108420568 in words is "two billion, one hundred eight million, four hundred twenty thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 29283619 58567238 87850857 117134476 175701714 234268952 263552571 351403428 527105142 702806856 1054210284 2108420568