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120115073 = 1379711593
BaseRepresentation
bin1110010100011…
…00111110000001
322101000110220102
413022030332001
5221222140243
615530252145
72655650501
oct712147601
9271013812
10120115073
1161890261
1234287055
131bb67410
1411d49a01
15a8299b8
hex728cf81

120115073 has 8 divisors (see below), whose sum is σ = 129528168. Its totient is φ = 110726784.

The previous prime is 120115069. The next prime is 120115103. The reversal of 120115073 is 370511021.

It can be written as a sum of positive squares in 4 ways, for example, as 24720784 + 95394289 = 4972^2 + 9767^2 .

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 120115073 - 22 = 120115069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120115273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4565 + ... + 16157.

It is an arithmetic number, because the mean of its divisors is an integer number (16191021).

Almost surely, 2120115073 is an apocalyptic number.

120115073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120115073 is a deficient number, since it is larger than the sum of its proper divisors (9413095).

120115073 is a wasteful number, since it uses less digits than its factorization.

120115073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12403.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 120115073 is about 10959.7022313565. The cubic root of 120115073 is about 493.4000280640.

Adding to 120115073 its reverse (370511021), we get a palindrome (490626094).

The spelling of 120115073 in words is "one hundred twenty million, one hundred fifteen thousand, seventy-three".

Divisors: 1 13 797 10361 11593 150709 9239621 120115073