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15820130133 = 3211511527187
BaseRepresentation
bin11101011101111010…
…00000011101010101
31111211112100212201200
432232331000131111
5224344423131013
611133452143113
71100015613243
oct165675003525
944745325650
1015820130133
116789061a15
123096167a99
131651729662
14aa110d793
15628d15e73
hex3aef40755

15820130133 has 12 divisors (see below), whose sum is σ = 22871167488. Its totient is φ = 10537583400.

The previous prime is 15820130101. The next prime is 15820130167. The reversal of 15820130133 is 33103102851.

15820130133 is a `hidden beast` number, since 158 + 201 + 301 + 3 + 3 = 666.

It is not a de Polignac number, because 15820130133 - 25 = 15820130101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15820130097 and 15820130106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15820130633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 753235 + ... + 773952.

It is an arithmetic number, because the mean of its divisors is an integer number (1905930624).

Almost surely, 215820130133 is an apocalyptic number.

It is an amenable number.

15820130133 is a deficient number, since it is larger than the sum of its proper divisors (7051037355).

15820130133 is a wasteful number, since it uses less digits than its factorization.

15820130133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528344 (or 1528341 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 15820130133 its reverse (33103102851), we get a palindrome (48923232984).

The spelling of 15820130133 in words is "fifteen billion, eight hundred twenty million, one hundred thirty thousand, one hundred thirty-three".

Divisors: 1 3 9 1151 3453 10359 1527187 4581561 13744683 1757792237 5273376711 15820130133