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120342053 = 139257081
BaseRepresentation
bin1110010110001…
…00011000100101
322101110000021002
413023010120211
5221301421203
615535203045
72660614316
oct713043045
9271400232
10120342053
1161a25847
1234376485
131bc16820
1411da860d
15a871d88
hex72c4625

120342053 has 4 divisors (see below), whose sum is σ = 129599148. Its totient is φ = 111084960.

The previous prime is 120342041. The next prime is 120342059. The reversal of 120342053 is 350243021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350243021 = 636155061.

It can be written as a sum of positive squares in 2 ways, for example, as 6770404 + 113571649 = 2602^2 + 10657^2 .

It is a cyclic number.

It is not a de Polignac number, because 120342053 - 26 = 120341989 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 (120342059) 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, 4628528 + ... + 4628553.

It is an arithmetic number, because the mean of its divisors is an integer number (32399787).

Almost surely, 2120342053 is an apocalyptic number.

120342053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120342053 is a deficient number, since it is larger than the sum of its proper divisors (9257095).

120342053 is an equidigital number, since it uses as much as digits as its factorization.

120342053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9257094.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 120342053 is about 10970.0525522898. The cubic root of 120342053 is about 493.7106231910.

Adding to 120342053 its reverse (350243021), we get a palindrome (470585074).

The spelling of 120342053 in words is "one hundred twenty million, three hundred forty-two thousand, fifty-three".

Divisors: 1 13 9257081 120342053