Search a number
-
+
12803779848 = 2333714418671
BaseRepresentation
bin10111110110010101…
…00010110100001000
31020001022120102000110
423323022202310020
5202210231423343
65514301234320
7632201222136
oct137312426410
936038512013
1012803779848
115480444342
122593b629a0
13129083bcc2
1489668c756
154ee0e2833
hex2fb2a2d08

12803779848 has 32 divisors (see below), whose sum is σ = 32874572160. Its totient is φ = 4152576960.

The previous prime is 12803779801. The next prime is 12803779853. The reversal of 12803779848 is 84897730821.

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, 7208448 + ... + 7210223.

It is an arithmetic number, because the mean of its divisors is an integer number (1027330380).

Almost surely, 212803779848 is an apocalyptic number.

It is an amenable number.

12803779848 is an abundant number, since it is smaller than the sum of its proper divisors (20070792312).

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

12803779848 is a wasteful number, since it uses less digits than its factorization.

12803779848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14418717 (or 14418713 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 57.

The spelling of 12803779848 in words is "twelve billion, eight hundred three million, seven hundred seventy-nine thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 222 296 444 888 14418671 28837342 43256013 57674684 86512026 115349368 173024052 346048104 533490827 1066981654 1600472481 2133963308 3200944962 4267926616 6401889924 12803779848