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11280465976 = 2313421257639
BaseRepresentation
bin10101000000101111…
…00100000000111000
31002010011012001020011
422200113210000320
5141100244402401
65103203311304
7546353243623
oct124027440070
932104161204
1011280465976
11486959005a
12222997b534
1310aa076150
1479023adba
154604e0451
hex2a05e4038

11280465976 has 32 divisors (see below), whose sum is σ = 22832056800. Its totient is φ = 5193982080.

The previous prime is 11280465929. The next prime is 11280465979. The reversal of 11280465976 is 67956408211.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11280465979) 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, 85036 + ... + 172603.

It is an arithmetic number, because the mean of its divisors is an integer number (713501775).

Almost surely, 211280465976 is an apocalyptic number.

It is an amenable number.

11280465976 is an abundant number, since it is smaller than the sum of its proper divisors (11551590824).

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

11280465976 is a wasteful number, since it uses less digits than its factorization.

11280465976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258079 (or 258075 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 11280465976 in words is "eleven billion, two hundred eighty million, four hundred sixty-five thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 13 26 52 104 421 842 1684 3368 5473 10946 21892 43784 257639 515278 1030556 2061112 3349307 6698614 13397228 26794456 108466019 216932038 433864076 867728152 1410058247 2820116494 5640232988 11280465976