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12911882748 = 2233729080817
BaseRepresentation
bin11000000011001101…
…11011000111111100
31020022211222121022120
430001212323013330
5202420420221443
65533122242540
7634653123012
oct140146730774
936284877276
1012911882748
11552646a686
1226041b6450
1312aa05ba0b
148a6b8c8b2
15508848083
hex3019bb1fc

12911882748 has 24 divisors (see below), whose sum is σ = 30941990352. Its totient is φ = 4187637504.

The previous prime is 12911882747. The next prime is 12911882791. The reversal of 12911882748 is 84728811921.

It is a self number, because there is not a number n which added to its sum of digits gives 12911882748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911882747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14539965 + ... + 14540852.

It is an arithmetic number, because the mean of its divisors is an integer number (1289249598).

Almost surely, 212911882748 is an apocalyptic number.

It is an amenable number.

12911882748 is an abundant number, since it is smaller than the sum of its proper divisors (18030107604).

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

12911882748 is a wasteful number, since it uses less digits than its factorization.

12911882748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29080861 (or 29080859 counting only the distinct ones).

The product of its digits is 516096, while the sum is 51.

The spelling of 12911882748 in words is "twelve billion, nine hundred eleven million, eight hundred eighty-two thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 29080817 58161634 87242451 116323268 174484902 348969804 1075990229 2151980458 3227970687 4303960916 6455941374 12911882748