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12431033430 = 235853485777
BaseRepresentation
bin10111001001111001…
…01000010001010110
31012002100011221001120
423210330220101112
5200424321032210
65413304104410
7620024016654
oct134474502126
935070157046
1012431033430
1152a9aa3452
1224ab165106
1312315505aa
1485cd7ddd4
154cb514270
hex2e4f28456

12431033430 has 32 divisors (see below), whose sum is σ = 29869517664. Its totient is φ = 3311049216.

The previous prime is 12431033411. The next prime is 12431033441. The reversal of 12431033430 is 3433013421.

It is a self number, because there is not a number n which added to its sum of digits gives 12431033430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217299 + ... + 268478.

It is an arithmetic number, because the mean of its divisors is an integer number (933422427).

Almost surely, 212431033430 is an apocalyptic number.

12431033430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12431033430 is an abundant number, since it is smaller than the sum of its proper divisors (17438484234).

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

12431033430 is a wasteful number, since it uses less digits than its factorization.

12431033430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486640.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 12431033430 its reverse (3433013421), we get a palindrome (15864046851).

The spelling of 12431033430 in words is "twelve billion, four hundred thirty-one million, thirty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 853 1706 2559 4265 5118 8530 12795 25590 485777 971554 1457331 2428885 2914662 4857770 7286655 14573310 414367781 828735562 1243103343 2071838905 2486206686 4143677810 6215516715 12431033430