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12430440303 = 383157317971
BaseRepresentation
bin10111001001110100…
…10111011101101111
31012002022001210102220
423210322113131233
5200424143042203
65413243250423
7620015666511
oct134472273557
935068053386
1012430440303
1152a9728866
1224aab19a13
1312313a3628
1485cc67bb1
154cb448653
hex2e4e9776f

12430440303 has 16 divisors (see below), whose sum is σ = 16880497536. Its totient is φ = 8134944480.

The previous prime is 12430440287. The next prime is 12430440313. The reversal of 12430440303 is 30304403421.

It is not a de Polignac number, because 12430440303 - 24 = 12430440287 is a prime.

It is a super-2 number, since 2×124304403032 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430440313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119893 + ... + 198078.

It is an arithmetic number, because the mean of its divisors is an integer number (1055031096).

Almost surely, 212430440303 is an apocalyptic number.

12430440303 is a deficient number, since it is larger than the sum of its proper divisors (4450057233).

12430440303 is a wasteful number, since it uses less digits than its factorization.

12430440303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318214.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12430440303 its reverse (30304403421), we get a palindrome (42734843724).

The spelling of 12430440303 in words is "twelve billion, four hundred thirty million, four hundred forty thousand, three hundred three".

Divisors: 1 3 83 157 249 471 13031 39093 317971 953913 26391593 49921447 79174779 149764341 4143480101 12430440303