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120221233 = 1117961057
BaseRepresentation
bin1110010101001…
…10111000110001
322101012212112021
413022212320301
5221234034413
615532431441
72656602136
oct712467061
9271185467
10120221233
1161952aa0
1234318581
131bba3832
1411d7658d
15a84b18d
hex72a6e31

120221233 has 8 divisors (see below), whose sum is σ = 131885280. Its totient is φ = 108679680.

The previous prime is 120221221. The next prime is 120221237. The reversal of 120221233 is 332122021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120221233 - 25 = 120221201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120221237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28560 + ... + 32497.

It is an arithmetic number, because the mean of its divisors is an integer number (16485660).

Almost surely, 2120221233 is an apocalyptic number.

It is an amenable number.

120221233 is a deficient number, since it is larger than the sum of its proper divisors (11664047).

120221233 is a wasteful number, since it uses less digits than its factorization.

120221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61247.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 120221233 is about 10964.5443589782. The cubic root of 120221233 is about 493.5453440568.

Adding to 120221233 its reverse (332122021), we get a palindrome (452343254).

The spelling of 120221233 in words is "one hundred twenty million, two hundred twenty-one thousand, two hundred thirty-three".

Divisors: 1 11 179 1969 61057 671627 10929203 120221233