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12631241044 = 2229316934361
BaseRepresentation
bin10111100001110000…
…10111000101010100
31012121021220112021101
423300320113011110
5201332044203134
65445215155444
7625004530432
oct136070270524
935537815241
1012631241044
1153a2008394
122546215b84
131263b7b236
1487b7b7d52
154dddaee14
hex2f0e17154

12631241044 has 24 divisors (see below), whose sum is σ = 22874783400. Its totient is φ = 6095738880.

The previous prime is 12631241003. The next prime is 12631241071. The reversal of 12631241044 is 44014213621.

It can be written as a sum of positive squares in 4 ways, for example, as 5969416644 + 6661824400 = 77262^2 + 81620^2 .

It is a congruent number.

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, 350424 + ... + 384784.

It is an arithmetic number, because the mean of its divisors is an integer number (953115975).

Almost surely, 212631241044 is an apocalyptic number.

It is an amenable number.

12631241044 is a deficient number, since it is larger than the sum of its proper divisors (10243542356).

12631241044 is a wasteful number, since it uses less digits than its factorization.

12631241044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37563 (or 37561 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12631241044 its reverse (44014213621), we get a palindrome (56645454665).

The spelling of 12631241044 in words is "twelve billion, six hundred thirty-one million, two hundred forty-one thousand, forty-four".

Divisors: 1 2 4 29 58 116 3169 6338 12676 34361 68722 91901 137444 183802 367604 996469 1992938 3985876 108890009 217780018 435560036 3157810261 6315620522 12631241044