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330135023 = 1427231349
BaseRepresentation
bin10011101011010…
…111010111101111
3212000012121010002
4103223113113233
51134003310043
652431534515
711116046531
oct2353272757
9760177102
10330135023
1115a397369
129268a43b
135351c38a
1431bb9851
151deb2bb8
hex13ad75ef

330135023 has 4 divisors (see below), whose sum is σ = 330367800. Its totient is φ = 329902248.

The previous prime is 330135017. The next prime is 330135061. The reversal of 330135023 is 320531033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320531033 = 1486921557.

It is a cyclic number.

It is not a de Polignac number, because 330135023 - 24 = 330135007 is a prime.

It is a super-2 number, since 2×3301350232 = 217978266822421058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330134986 and 330135004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330135083) 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, 114248 + ... + 117101.

It is an arithmetic number, because the mean of its divisors is an integer number (82591950).

Almost surely, 2330135023 is an apocalyptic number.

330135023 is a deficient number, since it is larger than the sum of its proper divisors (232777).

330135023 is a wasteful number, since it uses less digits than its factorization.

330135023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232776.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 330135023 is about 18169.6181302745. The cubic root of 330135023 is about 691.1365592483.

Adding to 330135023 its reverse (320531033), we get a palindrome (650666056).

The spelling of 330135023 in words is "three hundred thirty million, one hundred thirty-five thousand, twenty-three".

Divisors: 1 1427 231349 330135023