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168045880020 = 223514561192347
BaseRepresentation
bin1001110010000001010…
…0001010001011010100
3121001202101222012110020
42130200110022023110
510223124221130040
6205111010225140
715066222261234
oct2344024121324
9531671865406
10168045880020
11652a4577987
122869a2851b0
1312b01154a85
1481c2321cc4
154587eebcd0
hex272050a2d4

168045880020 has 48 divisors (see below), whose sum is σ = 470563224768. Its totient is φ = 44808924160.

The previous prime is 168045879983. The next prime is 168045880033. The reversal of 168045880020 is 20088540861.

168045880020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777487 + ... + 969833.

It is an arithmetic number, because the mean of its divisors is an integer number (9803400516).

Almost surely, 2168045880020 is an apocalyptic number.

168045880020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168045880020 is an abundant number, since it is smaller than the sum of its proper divisors (302517344748).

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

168045880020 is a wasteful number, since it uses less digits than its factorization.

168045880020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206920 (or 206918 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The spelling of 168045880020 in words is "one hundred sixty-eight billion, forty-five million, eight hundred eighty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 14561 29122 43683 58244 72805 87366 145610 174732 192347 218415 291220 384694 436830 577041 769388 873660 961735 1154082 1923470 2308164 2885205 3846940 5770410 11540820 2800764667 5601529334 8402294001 11203058668 14003823335 16804588002 28007646670 33609176004 42011470005 56015293340 84022940010 168045880020