Search a number
-
+
12814064880 = 2435449118913
BaseRepresentation
bin10111110111100011…
…10001110011110000
31020002000220221102120
423323301301303300
5202220400034010
65515305514240
7632354516511
oct137361616360
936060827376
1012814064880
115486229671
1225974a2980
131292a00516
14897ba8a08
154eee74e70
hex2fbc71cf0

12814064880 has 80 divisors (see below), whose sum is σ = 39812407200. Its totient is φ = 3409444864.

The previous prime is 12814064839. The next prime is 12814064881. The reversal of 12814064880 is 8846041821.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12814064881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48304 + ... + 167216.

It is an arithmetic number, because the mean of its divisors is an integer number (497655090).

Almost surely, 212814064880 is an apocalyptic number.

12814064880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12814064880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19906203600).

12814064880 is an abundant number, since it is smaller than the sum of its proper divisors (26998342320).

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

12814064880 is a wasteful number, since it uses less digits than its factorization.

12814064880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119378 (or 119372 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The spelling of 12814064880 in words is "twelve billion, eight hundred fourteen million, sixty-four thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 449 898 1347 1796 2245 2694 3592 4490 5388 6735 7184 8980 10776 13470 17960 21552 26940 35920 53880 107760 118913 237826 356739 475652 594565 713478 951304 1189130 1426956 1783695 1902608 2378260 2853912 3567390 4756520 5707824 7134780 9513040 14269560 28539120 53391937 106783874 160175811 213567748 266959685 320351622 427135496 533919370 640703244 800879055 854270992 1067838740 1281406488 1601758110 2135677480 2562812976 3203516220 4271354960 6407032440 12814064880