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120465221 = 229526049
BaseRepresentation
bin1110010111000…
…10011101000101
322101200021012212
413023202131011
5221314341341
615541553205
72661636362
oct713423505
9271607185
10120465221
1161aaa338
1234415805
131bc5a8c6
1411ddb469
15a8985eb
hex72e2745

120465221 has 4 divisors (see below), whose sum is σ = 120991500. Its totient is φ = 119938944.

The previous prime is 120465211. The next prime is 120465227. The reversal of 120465221 is 122564021.

It is a happy number.

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 74632321 + 45832900 = 8639^2 + 6770^2 .

It is a cyclic number.

It is not a de Polignac number, because 120465221 - 26 = 120465157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120465227) 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, 262796 + ... + 263253.

It is an arithmetic number, because the mean of its divisors is an integer number (30247875).

Almost surely, 2120465221 is an apocalyptic number.

It is an amenable number.

120465221 is a deficient number, since it is larger than the sum of its proper divisors (526279).

120465221 is an equidigital number, since it uses as much as digits as its factorization.

120465221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526278.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 120465221 is about 10975.6649456878. The cubic root of 120465221 is about 493.8790005081.

The spelling of 120465221 in words is "one hundred twenty million, four hundred sixty-five thousand, two hundred twenty-one".

Divisors: 1 229 526049 120465221