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808040044 = 22779736209
BaseRepresentation
bin110000001010011…
…011011001101100
32002022110200120001
4300022123121230
53123324240134
6212103034044
726011140610
oct6012333154
92068420501
10808040044
11385132499
121a673b924
13cb539606
147945d340
154ae14414
hex3029b66c

808040044 has 24 divisors (see below), whose sum is σ = 1618152480. Its totient is φ = 345858816.

The previous prime is 808040029. The next prime is 808040053. The reversal of 808040044 is 440040808.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 808039994 and 808040021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4212 + ... + 40420.

It is an arithmetic number, because the mean of its divisors is an integer number (67423020).

Almost surely, 2808040044 is an apocalyptic number.

It is an amenable number.

808040044 is an abundant number, since it is smaller than the sum of its proper divisors (810112436).

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

808040044 is a wasteful number, since it uses less digits than its factorization.

808040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37017 (or 37015 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 808040044 is about 28426.0451698790. The cubic root of 808040044 is about 931.4172878816.

The spelling of 808040044 in words is "eight hundred eight million, forty thousand, forty-four".

Divisors: 1 2 4 7 14 28 797 1594 3188 5579 11158 22316 36209 72418 144836 253463 506926 1013852 28858573 57717146 115434292 202010011 404020022 808040044