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807134805 = 32540144729
BaseRepresentation
bin110000000110111…
…110011001010101
32002020202200210200
4300012332121111
53123111303210
6212031411113
726000350461
oct6006763125
92066680720
10807134805
11384674364
121a6383a99
13cb2b0579
14792a54a1
154acd60c0
hex301be655

807134805 has 24 divisors (see below), whose sum is σ = 1402553880. Its totient is φ = 429388800.

The previous prime is 807134803. The next prime is 807134813. The reversal of 807134805 is 508431708.

807134805 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 4 ways, for example, as 422425809 + 384708996 = 20553^2 + 19614^2 .

It is not a de Polignac number, because 807134805 - 21 = 807134803 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 807134805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807134803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4320 + ... + 40409.

It is an arithmetic number, because the mean of its divisors is an integer number (58439745).

Almost surely, 2807134805 is an apocalyptic number.

It is an amenable number.

807134805 is a deficient number, since it is larger than the sum of its proper divisors (595419075).

807134805 is a wasteful number, since it uses less digits than its factorization.

807134805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45141 (or 45138 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 807134805 is about 28410.1180039788. The cubic root of 807134805 is about 931.0693388263.

The spelling of 807134805 in words is "eight hundred seven million, one hundred thirty-four thousand, eight hundred five".

Divisors: 1 3 5 9 15 45 401 1203 2005 3609 6015 18045 44729 134187 223645 402561 670935 2012805 17936329 53808987 89681645 161426961 269044935 807134805