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13572924905 = 516931603417
BaseRepresentation
bin11001010010000001…
…00110010111101001
31022000220212000200102
430221000212113221
5210244132044110
610122454515145
7660230646431
oct145100462751
938026760612
1013572924905
115835620411
122769665ab5
131383caaa17
1492a8a52c1
155468c25a5
hex3290265e9

13572924905 has 8 divisors (see below), whose sum is σ = 16297140552. Its totient is φ = 10851919488.

The previous prime is 13572924901. The next prime is 13572924943. The reversal of 13572924905 is 50942927531.

It can be written as a sum of positive squares in 4 ways, for example, as 3107839504 + 10465085401 = 55748^2 + 102299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13572924905 - 22 = 13572924901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13572924905.

It is not an unprimeable number, because it can be changed into a prime (13572924901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793244 + ... + 810173.

It is an arithmetic number, because the mean of its divisors is an integer number (2037142569).

Almost surely, 213572924905 is an apocalyptic number.

It is an amenable number.

13572924905 is a deficient number, since it is larger than the sum of its proper divisors (2724215647).

13572924905 is a wasteful number, since it uses less digits than its factorization.

13572924905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605115.

The product of its (nonzero) digits is 680400, while the sum is 47.

The spelling of 13572924905 in words is "thirteen billion, five hundred seventy-two million, nine hundred twenty-four thousand, nine hundred five".

Divisors: 1 5 1693 8465 1603417 8017085 2714584981 13572924905