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120442453 is a prime number
BaseRepresentation
bin1110010110111…
…00111001010101
322101122002222121
413023130321111
5221313124303
615541255541
72661513115
oct713347125
9271562877
10120442453
1161a9421a
12344045b1
131bc50431
1411dd3045
15a8919bd
hex72dce55

120442453 has 2 divisors, whose sum is σ = 120442454. Its totient is φ = 120442452.

The previous prime is 120442429. The next prime is 120442457. The reversal of 120442453 is 354244021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117137329 + 3305124 = 10823^2 + 1818^2 .

It is a cyclic number.

It is not a de Polignac number, because 120442453 - 217 = 120311381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120442457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60221226 + 60221227.

It is an arithmetic number, because the mean of its divisors is an integer number (60221227).

Almost surely, 2120442453 is an apocalyptic number.

It is an amenable number.

120442453 is a deficient number, since it is larger than the sum of its proper divisors (1).

120442453 is an equidigital number, since it uses as much as digits as its factorization.

120442453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 120442453 is about 10974.6276930017. The cubic root of 120442453 is about 493.8478840706.

Adding to 120442453 its reverse (354244021), we get a palindrome (474686474).

The spelling of 120442453 in words is "one hundred twenty million, four hundred forty-two thousand, four hundred fifty-three".