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2080400667 = 35309130621
BaseRepresentation
bin111110000000000…
…0110010100011011
312100222122022012120
41330000012110123
513230040310132
6542234112323
7102361054032
oct17400062433
95328568176
102080400667
119783718a4
124a087b6a3
13272017c17
1415a427719
15c299502c
hex7c00651b

2080400667 has 8 divisors (see below), whose sum is σ = 2774411280. Its totient is φ = 1386661920.

The previous prime is 2080400633. The next prime is 2080400671. The reversal of 2080400667 is 7660040802.

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

It is not a de Polignac number, because 2080400667 - 26 = 2080400603 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2080400617) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 49384 + ... + 81237.

It is an arithmetic number, because the mean of its divisors is an integer number (346801410).

Almost surely, 22080400667 is an apocalyptic number.

2080400667 is a deficient number, since it is larger than the sum of its proper divisors (694010613).

2080400667 is a wasteful number, since it uses less digits than its factorization.

2080400667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135933.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2080400667 is about 45611.4093950187. The cubic root of 2080400667 is about 1276.5828179344.

The spelling of 2080400667 in words is "two billion, eighty million, four hundred thousand, six hundred sixty-seven".

Divisors: 1 3 5309 15927 130621 391863 693466889 2080400667