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13120144430 = 251543850301
BaseRepresentation
bin11000011100000010…
…11000010000101110
31020212100212101122012
430032001120100232
5203332224110210
610005522121222
7643062246641
oct141601302056
936770771565
1013120144430
115622a85778
122661ab0212
131311249593
148c66c1a58
1551bc85305
hex30e05842e

13120144430 has 16 divisors (see below), whose sum is σ = 23631593184. Its totient is φ = 5244650400.

The previous prime is 13120144397. The next prime is 13120144447. The reversal of 13120144430 is 3444102131.

It is a junction number, because it is equal to n+sod(n) for n = 13120144396 and 13120144405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409721 + ... + 440580.

It is an arithmetic number, because the mean of its divisors is an integer number (1476974574).

Almost surely, 213120144430 is an apocalyptic number.

13120144430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120144430 is a deficient number, since it is larger than the sum of its proper divisors (10511448754).

13120144430 is a wasteful number, since it uses less digits than its factorization.

13120144430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851851.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13120144430 its reverse (3444102131), we get a palindrome (16564246561).

The spelling of 13120144430 in words is "thirteen billion, one hundred twenty million, one hundred forty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 1543 3086 7715 15430 850301 1700602 4251505 8503010 1312014443 2624028886 6560072215 13120144430