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12434034040 = 235714378181
BaseRepresentation
bin10111001010010000…
…00100110101111000
31012002112211101010021
423211020010311320
5200431103042130
65413452300224
7620061355051
oct134510046570
935075741107
1012434034040
11530076289a
1224b0171674
1312320612bc
1485d521728
154cb90837a
hex2e5204d78

12434034040 has 32 divisors (see below), whose sum is σ = 28370619360. Its totient is φ = 4903561600.

The previous prime is 12434034023. The next prime is 12434034047. The reversal of 12434034040 is 4043043421.

It is a junction number, because it is equal to n+sod(n) for n = 12434033996 and 12434034014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434034047) 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, 2186251 + ... + 2191930.

It is an arithmetic number, because the mean of its divisors is an integer number (886581855).

Almost surely, 212434034040 is an apocalyptic number.

12434034040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434034040 is an abundant number, since it is smaller than the sum of its proper divisors (15936585320).

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

12434034040 is a wasteful number, since it uses less digits than its factorization.

12434034040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378263 (or 4378259 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 12434034040 its reverse (4043043421), we get a palindrome (16477077461).

The spelling of 12434034040 in words is "twelve billion, four hundred thirty-four million, thirty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 4378181 8756362 17512724 21890905 35025448 43781810 87563620 175127240 310850851 621701702 1243403404 1554254255 2486806808 3108508510 6217017020 12434034040