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15032550133 = 17983980727
BaseRepresentation
bin11100000000000001…
…01000001011110101
31102210122101200002001
432000000220023311
5221241313101013
610523355415301
71041343365526
oct160000501365
942718350061
1015032550133
116414534457
122ab6454531
1315575049a3
14a2869884d
155ceae3ddd
hex3800282f5

15032550133 has 4 divisors (see below), whose sum is σ = 15116531040. Its totient is φ = 14948569228.

The previous prime is 15032550079. The next prime is 15032550157. The reversal of 15032550133 is 33105523051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33105523051 = 38386437397.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15032550133 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 (15032550833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41990185 + ... + 41990542.

It is an arithmetic number, because the mean of its divisors is an integer number (3779132760).

Almost surely, 215032550133 is an apocalyptic number.

It is an amenable number.

15032550133 is a deficient number, since it is larger than the sum of its proper divisors (83980907).

15032550133 is an equidigital number, since it uses as much as digits as its factorization.

15032550133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83980906.

The product of its (nonzero) digits is 6750, while the sum is 28.

The spelling of 15032550133 in words is "fifteen billion, thirty-two million, five hundred fifty thousand, one hundred thirty-three".

Divisors: 1 179 83980727 15032550133