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13120125235 = 571518724683
BaseRepresentation
bin11000011100000010…
…10011100100110011
31020212100211102022021
430032001103210303
5203332223001420
610005521452311
7643062136660
oct141601234463
936770742267
1013120125235
115622a72308
122661aa1097
131311240919
148c66b8a67
1551bc7e7aa
hex30e053933

13120125235 has 16 divisors (see below), whose sum is σ = 17995228416. Its totient is φ = 8995700448.

The previous prime is 13120125211. The next prime is 13120125269. The reversal of 13120125235 is 53252102131.

It is not a de Polignac number, because 13120125235 - 211 = 13120123187 is a prime.

It is a Duffinian 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, 519204 + ... + 543886.

It is an arithmetic number, because the mean of its divisors is an integer number (1124701776).

Almost surely, 213120125235 is an apocalyptic number.

13120125235 is a deficient number, since it is larger than the sum of its proper divisors (4875103181).

13120125235 is a wasteful number, since it uses less digits than its factorization.

13120125235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39882.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 13120125235 its reverse (53252102131), we get a palindrome (66372227366).

The spelling of 13120125235 in words is "thirteen billion, one hundred twenty million, one hundred twenty-five thousand, two hundred thirty-five".

Divisors: 1 5 7 35 15187 24683 75935 106309 123415 172781 531545 863905 374860721 1874303605 2624025047 13120125235