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12250400403 = 313929377459
BaseRepresentation
bin10110110100010111…
…00100011010010011
31011121202021211010110
423122023210122103
5200042100303103
65343332332403
7612401454033
oct133213443223
934552254113
1012250400403
11521703915a
12245a774103
131202cb7547
14842d9d8c3
154ba733403
hex2da2e4693

12250400403 has 8 divisors (see below), whose sum is σ = 16451377600. Its totient is φ = 8108178408.

The previous prime is 12250400401. The next prime is 12250400467. The reversal of 12250400403 is 30400405221.

12250400403 is digitally balanced in base 2, because in such base 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 not a de Polignac number, because 12250400403 - 21 = 12250400401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12250400403.

It is not an unprimeable number, because it can be changed into a prime (12250400401) 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 7 ways as a sum of consecutive naturals, for example, 14688313 + ... + 14689146.

It is an arithmetic number, because the mean of its divisors is an integer number (2056422200).

Almost surely, 212250400403 is an apocalyptic number.

12250400403 is a deficient number, since it is larger than the sum of its proper divisors (4200977197).

12250400403 is a wasteful number, since it uses less digits than its factorization.

12250400403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29377601.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 12250400403 its reverse (30400405221), we get a palindrome (42650805624).

The spelling of 12250400403 in words is "twelve billion, two hundred fifty million, four hundred thousand, four hundred three".

Divisors: 1 3 139 417 29377459 88132377 4083466801 12250400403