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121235033 = 499324281
BaseRepresentation
bin1110011100111…
…10011001011001
322110010101012102
413032132121121
5222014010113
620010253145
73001323623
oct716363131
9273111172
10121235033
1162485747
12347271b5
131c16a10a
141215bc13
15a99b758
hex739e659

121235033 has 4 divisors (see below), whose sum is σ = 121264308. Its totient is φ = 121205760.

The previous prime is 121235021. The next prime is 121235057. The reversal of 121235033 is 330532121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330532121 = 1523217027.

It can be written as a sum of positive squares in 2 ways, for example, as 85618009 + 35617024 = 9253^2 + 5968^2 .

It is a cyclic number.

It is not a de Polignac number, because 121235033 - 28 = 121234777 is a prime.

It is a super-2 number, since 2×1212350332 = 29395866453022178, 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 = 121234996 and 121235014.

It is not an unprimeable number, because it can be changed into a prime (121235003) 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, 7148 + ... + 17133.

It is an arithmetic number, because the mean of its divisors is an integer number (30316077).

Almost surely, 2121235033 is an apocalyptic number.

It is an amenable number.

121235033 is a deficient number, since it is larger than the sum of its proper divisors (29275).

121235033 is an equidigital number, since it uses as much as digits as its factorization.

121235033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29274.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 121235033 is about 11010.6781353375. The cubic root of 121235033 is about 494.9287834149.

Adding to 121235033 its reverse (330532121), we get a palindrome (451767154).

The spelling of 121235033 in words is "one hundred twenty-one million, two hundred thirty-five thousand, thirty-three".

Divisors: 1 4993 24281 121235033