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12400112042 = 216193829559
BaseRepresentation
bin10111000110001101…
…01011000110101010
31012000011222221212222
423203012223012222
5200343412041132
65410241234042
7616200133103
oct134306530652
935004887788
1012400112042
1152935a378a
1224a0932922
131228015106
14858c113aa
154c8957412
hex2e31ab1aa

12400112042 has 8 divisors (see below), whose sum is σ = 18611661600. Its totient is φ = 6196224844.

The previous prime is 12400111993. The next prime is 12400112047. The reversal of 12400112042 is 24021100421.

12400112042 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12400112042.

It is not an unprimeable number, because it can be changed into a prime (12400112047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911542 + ... + 1918017.

It is an arithmetic number, because the mean of its divisors is an integer number (2326457700).

Almost surely, 212400112042 is an apocalyptic number.

12400112042 is a deficient number, since it is larger than the sum of its proper divisors (6211549558).

12400112042 is a wasteful number, since it uses less digits than its factorization.

12400112042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831180.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12400112042 its reverse (24021100421), we get a palindrome (36421212463).

The spelling of 12400112042 in words is "twelve billion, four hundred million, one hundred twelve thousand, forty-two".

Divisors: 1 2 1619 3238 3829559 7659118 6200056021 12400112042