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133512083 = 163781559
BaseRepresentation
bin1111111010100…
…11101110010011
3100022020010010222
413331103232103
5233134341313
621125343255
73210556025
oct775235623
9308203128
10133512083
1169400671
1238867b2b
1321878243
1413a36015
15bac4208
hex7f53b93

133512083 has 4 divisors (see below), whose sum is σ = 133595280. Its totient is φ = 133428888.

The previous prime is 133512077. The next prime is 133512089. The reversal of 133512083 is 380215331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380215331 = 438842217.

It is an interprime number because it is at equal distance from previous prime (133512077) and next prime (133512089).

It is a cyclic number.

It is not a de Polignac number, because 133512083 - 26 = 133512019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133512089) 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, 39143 + ... + 42416.

It is an arithmetic number, because the mean of its divisors is an integer number (33398820).

Almost surely, 2133512083 is an apocalyptic number.

133512083 is a deficient number, since it is larger than the sum of its proper divisors (83197).

133512083 is an equidigital number, since it uses as much as digits as its factorization.

133512083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83196.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 133512083 is about 11554.7428790086. The cubic root of 133512083 is about 511.1011489114.

The spelling of 133512083 in words is "one hundred thirty-three million, five hundred twelve thousand, eighty-three".

Divisors: 1 1637 81559 133512083