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133023023 = 719003289
BaseRepresentation
bin1111110110111…
…00010100101111
3100021022021021122
413323130110233
5233023214043
621111051155
73203451140
oct773342457
9307267248
10133023023
11690a7191
1238670abb
1321736763
1413949ac7
15ba29368
hex7edc52f

133023023 has 4 divisors (see below), whose sum is σ = 152026320. Its totient is φ = 114019728.

The previous prime is 133023017. The next prime is 133023041. The reversal of 133023023 is 320320331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320320331 = 417812691.

It is a cyclic number.

It is not a de Polignac number, because 133023023 - 212 = 133018927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133022992 and 133023010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133023043) 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, 9501638 + ... + 9501651.

It is an arithmetic number, because the mean of its divisors is an integer number (38006580).

Almost surely, 2133023023 is an apocalyptic number.

133023023 is a deficient number, since it is larger than the sum of its proper divisors (19003297).

133023023 is an equidigital number, since it uses as much as digits as its factorization.

133023023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19003296.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 133023023 is about 11533.5607251187. The cubic root of 133023023 is about 510.4763241808.

Adding to 133023023 its reverse (320320331), we get a palindrome (453343354).

The spelling of 133023023 in words is "one hundred thirty-three million, twenty-three thousand, twenty-three".

Divisors: 1 7 19003289 133023023