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2001868518702 = 231325664981009
BaseRepresentation
bin11101001000011000101…
…010010111010100101110
321002101011122210102202110
4131020120222113110232
5230244311320044302
64131351245504450
7264426111436323
oct35103052272456
97071148712673
102001868518702
11701a95654618
12283b85872126
13116a106c4940
146cc68ac0b4a
153711706cb6c
hex1d218a9752e

2001868518702 has 16 divisors (see below), whose sum is σ = 4311716809680. Its totient is φ = 615959544192.

The previous prime is 2001868518697. The next prime is 2001868518703. The reversal of 2001868518702 is 2078158681002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001868518703) 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, 12832490427 + ... + 12832490582.

It is an arithmetic number, because the mean of its divisors is an integer number (269482300605).

Almost surely, 22001868518702 is an apocalyptic number.

2001868518702 is an abundant number, since it is smaller than the sum of its proper divisors (2309848290978).

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

2001868518702 is a wasteful number, since it uses less digits than its factorization.

2001868518702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25664981027.

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 2001868518702 in words is "two trillion, one billion, eight hundred sixty-eight million, five hundred eighteen thousand, seven hundred two".

Divisors: 1 2 3 6 13 26 39 78 25664981009 51329962018 76994943027 153989886054 333644753117 667289506234 1000934259351 2001868518702