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1018689703712 = 2567226632
BaseRepresentation
bin11101101001011101010…
…00110100111100100000
310121101102020101202010122
432310232220310330200
5113142234031004322
62055551331415412
7133412036420102
oct16645650647440
93541366352118
101018689703712
11363029864a1a
12145519154568
13750a6371b15
143743a6cb572
151b77245b442
hexed2ea34f20

1018689703712 has 54 divisors (see below), whose sum is σ = 2036690446203. Its totient is φ = 501554277312.

The previous prime is 1018689703711. The next prime is 1018689703723. The reversal of 1018689703712 is 2173079868101.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1018689703712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 509344851856 + 509344851856 = 713684^2 + 713684^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=713684.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1018689703711) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 382533293 + ... + 382535955.

Almost surely, 21018689703712 is an apocalyptic number.

It is an amenable number.

1018689703712 is a deficient number, since it is larger than the sum of its proper divisors (1018000742491).

1018689703712 is an frugal number, since it uses more digits than its factorization.

1018689703712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 1018689703712 in words is "one trillion, eighteen billion, six hundred eighty-nine million, seven hundred three thousand, seven hundred twelve".

Divisors: 1 2 4 8 16 32 67 134 268 536 1072 2144 2663 4489 5326 8978 10652 17956 21304 35912 42608 71824 85216 143648 178421 356842 713684 1427368 2854736 5709472 7091569 11954207 14183138 23908414 28366276 47816828 56732552 95633656 113465104 191267312 226930208 382534624 475135123 950270246 1900540492 3801080984 7602161968 15204323936 31834053241 63668106482 127336212964 254672425928 509344851856 1018689703712