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12442072 = 231555259
BaseRepresentation
bin101111011101…
…100111011000
3212102010022111
4233131213120
511141121242
61122402104
7210520156
oct57354730
925363274
1012442072
117028a05
124200334
132768296
14191c3d6
15115b817
hexbdd9d8

12442072 has 8 divisors (see below), whose sum is σ = 23328900. Its totient is φ = 6221032.

The previous prime is 12442069. The next prime is 12442081. The reversal of 12442072 is 27024421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777622 + ... + 777637.

Almost surely, 212442072 is an apocalyptic number.

It is an amenable number.

12442072 is a deficient number, since it is larger than the sum of its proper divisors (10886828).

12442072 is a wasteful number, since it uses less digits than its factorization.

12442072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555265 (or 1555261 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 12442072 is about 3527.3321363319. The cubic root of 12442072 is about 231.7203825087.

Adding to 12442072 its reverse (27024421), we get a palindrome (39466493).

The spelling of 12442072 in words is "twelve million, four hundred forty-two thousand, seventy-two".

Divisors: 1 2 4 8 1555259 3110518 6221036 12442072