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12119755 = 52423951
BaseRepresentation
bin101110001110…
…111011001011
3211210202011211
4232032323023
511100313010
61111433551
7205005364
oct56167313
924722154
1012119755
11692882a
1240858b7
13268466b
141876b6b
1510e608a
hexb8eecb

12119755 has 4 divisors (see below), whose sum is σ = 14543712. Its totient is φ = 9695800.

The previous prime is 12119747. The next prime is 12119761. The reversal of 12119755 is 55791121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55791121 = 367715173.

It is not a de Polignac number, because 12119755 - 23 = 12119747 is a prime.

It is a super-2 number, since 2×121197552 = 293776922520050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211971 + ... + 1211980.

It is an arithmetic number, because the mean of its divisors is an integer number (3635928).

Almost surely, 212119755 is an apocalyptic number.

12119755 is a deficient number, since it is larger than the sum of its proper divisors (2423957).

12119755 is an equidigital number, since it uses as much as digits as its factorization.

12119755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423956.

The product of its digits is 3150, while the sum is 31.

The square root of 12119755 is about 3481.3438497224. The cubic root of 12119755 is about 229.7019137761.

The spelling of 12119755 in words is "twelve million, one hundred nineteen thousand, seven hundred fifty-five".

Divisors: 1 5 2423951 12119755