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120440113 = 346734739
BaseRepresentation
bin1110010110111…
…00010100110001
322101121222202221
413023130110301
5221313040423
615541241041
72661503233
oct713342461
9271558687
10120440113
1161a92492
1234403181
131bc4c351
1411dd2253
15a890e5d
hex72dc531

120440113 has 4 divisors (see below), whose sum is σ = 120478320. Its totient is φ = 120401908.

The previous prime is 120440081. The next prime is 120440129. The reversal of 120440113 is 311044021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311044021 = 734260877.

It is a cyclic number.

It is not a de Polignac number, because 120440113 - 25 = 120440081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120440713) 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, 13903 + ... + 20836.

It is an arithmetic number, because the mean of its divisors is an integer number (30119580).

Almost surely, 2120440113 is an apocalyptic number.

It is an amenable number.

120440113 is a deficient number, since it is larger than the sum of its proper divisors (38207).

120440113 is an equidigital number, since it uses as much as digits as its factorization.

120440113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38206.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120440113 is about 10974.5210829448. The cubic root of 120440113 is about 493.8446858308.

Adding to 120440113 its reverse (311044021), we get a palindrome (431484134).

The spelling of 120440113 in words is "one hundred twenty million, four hundred forty thousand, one hundred thirteen".

Divisors: 1 3467 34739 120440113