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80687664010 = 258068766401
BaseRepresentation
bin100101100100101011…
…1000000101110001010
321201021021002000200101
41023021113000232022
52310222020222020
6101022320400014
75554341553642
oct1131127005612
9251237060611
1080687664010
11312460a0248
121377a17600a
1377bb7452b5
143c96221522
152173a5600a
hex12c95c0b8a

80687664010 has 8 divisors (see below), whose sum is σ = 145237795236. Its totient is φ = 32275065600.

The previous prime is 80687664007. The next prime is 80687664011. The reversal of 80687664010 is 1046678608.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74026982241 + 6660681769 = 272079^2 + 81613^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (80687664011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4034383191 + ... + 4034383210.

Almost surely, 280687664010 is an apocalyptic number.

80687664010 is a deficient number, since it is larger than the sum of its proper divisors (64550131226).

80687664010 is a wasteful number, since it uses less digits than its factorization.

80687664010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068766408.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 80687664010 in words is "eighty billion, six hundred eighty-seven million, six hundred sixty-four thousand, ten".

Divisors: 1 2 5 10 8068766401 16137532802 40343832005 80687664010