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1282680168 = 233711694091
BaseRepresentation
bin100110001110100…
…0010010101101000
310022101120220101220
41030131002111220
510111331231133
6331140142040
743533413220
oct11435022550
93271526356
101282680168
115a9048660
122b9697920
13175982763
14c24d3080
157791d5b3
hex4c742568

1282680168 has 64 divisors (see below), whose sum is σ = 3997969920. Its totient is φ = 333163200.

The previous prime is 1282680143. The next prime is 1282680181. The reversal of 1282680168 is 8610862821.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345198 + ... + 348893.

It is an arithmetic number, because the mean of its divisors is an integer number (62468280).

Almost surely, 21282680168 is an apocalyptic number.

It is an amenable number.

1282680168 is an abundant number, since it is smaller than the sum of its proper divisors (2715289752).

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

1282680168 is a wasteful number, since it uses less digits than its factorization.

1282680168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694118 (or 694114 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 1282680168 is about 35814.5245396334. The cubic root of 1282680168 is about 1086.5243407426.

The spelling of 1282680168 in words is "one billion, two hundred eighty-two million, six hundred eighty thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 56 66 77 84 88 132 154 168 231 264 308 462 616 924 1848 694091 1388182 2082273 2776364 4164546 4858637 5552728 7635001 8329092 9717274 14575911 15270002 16658184 19434548 22905003 29151822 30540004 38869096 45810006 53445007 58303644 61080008 91620012 106890014 116607288 160335021 183240024 213780028 320670042 427560056 641340084 1282680168