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133100029 = 251530279
BaseRepresentation
bin1111110111011…
…11000111111101
3100021110011220201
413323233013331
5233033200104
621112443501
73204221506
oct773570775
9307404821
10133100029
116914a027
12386a9591
132176281a
1413969bad
15ba420a4
hex7eef1fd

133100029 has 4 divisors (see below), whose sum is σ = 133630560. Its totient is φ = 132569500.

The previous prime is 133100017. The next prime is 133100039. The reversal of 133100029 is 920001331.

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: 920001331 = 2297400523.

It is a cyclic number.

It is not a de Polignac number, because 133100029 - 215 = 133067261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133099979 and 133100015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133100039) 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, 264889 + ... + 265390.

It is an arithmetic number, because the mean of its divisors is an integer number (33407640).

Almost surely, 2133100029 is an apocalyptic number.

It is an amenable number.

133100029 is a deficient number, since it is larger than the sum of its proper divisors (530531).

133100029 is an equidigital number, since it uses as much as digits as its factorization.

133100029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530530.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 133100029 is about 11536.8985867086. The cubic root of 133100029 is about 510.5748087790.

The spelling of 133100029 in words is "one hundred thirty-three million, one hundred thousand, twenty-nine".

Divisors: 1 251 530279 133100029