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13122909535 = 5171061145511
BaseRepresentation
bin11000011100010111…
…11011010101011111
31020212120001212122111
430032023323111133
5203333431101120
610010101254451
7643124614321
oct141613732537
936776055574
1013122909535
1156245a418a
122662a04427
1313119a7038
148c6c01611
1551c12e75a
hex30e2fb55f

13122909535 has 16 divisors (see below), whose sum is σ = 16689644352. Its totient is φ = 9871398400.

The previous prime is 13122909533. The next prime is 13122909571. The reversal of 13122909535 is 53590922131.

It is not a de Polignac number, because 13122909535 - 21 = 13122909533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122909533) 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, 17430 + ... + 162940.

It is an arithmetic number, because the mean of its divisors is an integer number (1043102772).

Almost surely, 213122909535 is an apocalyptic number.

13122909535 is a deficient number, since it is larger than the sum of its proper divisors (3566734817).

13122909535 is a wasteful number, since it uses less digits than its factorization.

13122909535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146594.

The product of its (nonzero) digits is 72900, while the sum is 40.

The spelling of 13122909535 in words is "thirteen billion, one hundred twenty-two million, nine hundred nine thousand, five hundred thirty-five".

Divisors: 1 5 17 85 1061 5305 18037 90185 145511 727555 2473687 12368435 154387171 771935855 2624581907 13122909535