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11520049 = 85913411
BaseRepresentation
bin101011111100…
…100000110001
3210200021112111
4223330200301
510422120144
61050525321
7166630102
oct53744061
923607474
1011520049
116559202
123a36841
1325046c8
14175c3a9
151028534
hexafc831

11520049 has 4 divisors (see below), whose sum is σ = 11534320. Its totient is φ = 11505780.

The previous prime is 11520037. The next prime is 11520059. The reversal of 11520049 is 94002511.

11520049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 94002511 = 686313697.

It is a cyclic number.

It is not a de Polignac number, because 11520049 - 223 = 3131441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520059) 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, 5847 + ... + 7564.

It is an arithmetic number, because the mean of its divisors is an integer number (2883580).

Almost surely, 211520049 is an apocalyptic number.

It is an amenable number.

11520049 is a deficient number, since it is larger than the sum of its proper divisors (14271).

11520049 is an equidigital number, since it uses as much as digits as its factorization.

11520049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14270.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11520049 is about 3394.1197680695. The cubic root of 11520049 is about 225.8489671446.

It can be divided in two parts, 115 and 20049, that added together give a square (20164 = 1422).

The spelling of 11520049 in words is "eleven million, five hundred twenty thousand, forty-nine".

Divisors: 1 859 13411 11520049