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121364233 = 132191873
BaseRepresentation
bin1110011101111…
…01111100001001
322110100221102121
413032331330021
5222032123413
620013131241
73002402404
oct716757411
9273327377
10121364233
1162563821
1234789b21
131c1b3b73
1412192d3b
15a9c4b8d
hex73bdf09

121364233 has 4 divisors (see below), whose sum is σ = 121457428. Its totient is φ = 121271040.

The previous prime is 121364213. The next prime is 121364237. The reversal of 121364233 is 332463121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118113424 + 3250809 = 10868^2 + 1803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121364233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121364198 and 121364207.

It is not an unprimeable number, because it can be changed into a prime (121364237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44616 + ... + 47257.

It is an arithmetic number, because the mean of its divisors is an integer number (30364357).

Almost surely, 2121364233 is an apocalyptic number.

It is an amenable number.

121364233 is a deficient number, since it is larger than the sum of its proper divisors (93195).

121364233 is an equidigital number, since it uses as much as digits as its factorization.

121364233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93194.

The product of its digits is 2592, while the sum is 25.

The square root of 121364233 is about 11016.5436049607. The cubic root of 121364233 is about 495.1045359604.

The spelling of 121364233 in words is "one hundred twenty-one million, three hundred sixty-four thousand, two hundred thirty-three".

Divisors: 1 1321 91873 121364233