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168706105588 = 22172480972141
BaseRepresentation
bin1001110100011110101…
…0101110000011110100
3121010110102022010200001
42131013222232003310
510231002230334323
6205300313201044
715121460144146
oct2350752560364
9533412263601
10168706105588
1165603220149
1228843400184
1312ba7b791a7
148245ca4c96
1545c5e643ad
hex2747aae0f4

168706105588 has 12 divisors (see below), whose sum is σ = 312602489892. Its totient is φ = 79391108480.

The previous prime is 168706105553. The next prime is 168706105619. The reversal of 168706105588 is 885501607861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44866865124 + 123839240464 = 211818^2 + 351908^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240486003 + ... + 1240486138.

It is an arithmetic number, because the mean of its divisors is an integer number (26050207491).

Almost surely, 2168706105588 is an apocalyptic number.

It is an amenable number.

168706105588 is a deficient number, since it is larger than the sum of its proper divisors (143896384304).

168706105588 is a wasteful number, since it uses less digits than its factorization.

168706105588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480972162 (or 2480972160 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 55.

The spelling of 168706105588 in words is "one hundred sixty-eight billion, seven hundred six million, one hundred five thousand, five hundred eighty-eight".

Divisors: 1 2 4 17 34 68 2480972141 4961944282 9923888564 42176526397 84353052794 168706105588