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13033257887 = 133472889217
BaseRepresentation
bin11000010001101011…
…11011101110011111
31020122022101002201002
430020311323232133
5203143003223022
65553135540515
7640655602256
oct141065735637
936568332632
1013033257887
115588a30611
12263898a73b
1312c9247820
148b8d4579d
15514321092
hex308d7bb9f

13033257887 has 8 divisors (see below), whose sum is σ = 14076270096. Its totient is φ = 11996024832.

The previous prime is 13033257883. The next prime is 13033257929. The reversal of 13033257887 is 78875233031.

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 13033257887 - 22 = 13033257883 is a prime.

It is a super-2 number, since 2×130332578872 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033257883) 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, 1440098 + ... + 1449119.

It is an arithmetic number, because the mean of its divisors is an integer number (1759533762).

Almost surely, 213033257887 is an apocalyptic number.

13033257887 is a deficient number, since it is larger than the sum of its proper divisors (1043012209).

13033257887 is a wasteful number, since it uses less digits than its factorization.

13033257887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889577.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 13033257887 in words is "thirteen billion, thirty-three million, two hundred fifty-seven thousand, eight hundred eighty-seven".

Divisors: 1 13 347 4511 2889217 37559821 1002558299 13033257887