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2991412 = 22747853
BaseRepresentation
bin1011011010010100110100
312121222110001
423122110310
51231211122
6144041044
734266214
oct13322464
95558401
102991412
111763546
121003184
13809788
1457c244
153e1527
hex2da534

2991412 has 6 divisors (see below), whose sum is σ = 5234978. Its totient is φ = 1495704.

The previous prime is 2991397. The next prime is 2991421. The reversal of 2991412 is 2141992.

It is a happy number.

2991412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1999396 + 992016 = 1414^2 + 996^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373923 + ... + 373930.

22991412 is an apocalyptic number.

It is an amenable number.

2991412 is a deficient number, since it is larger than the sum of its proper divisors (2243566).

2991412 is a wasteful number, since it uses less digits than its factorization.

2991412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747857 (or 747855 counting only the distinct ones).

The product of its digits is 1296, while the sum is 28.

The square root of 2991412 is about 1729.5698887296. The cubic root of 2991412 is about 144.0872028399.

It can be divided in two parts, 2991 and 412, that added together give a triangular number (3403 = T82).

The spelling of 2991412 in words is "two million, nine hundred ninety-one thousand, four hundred twelve".

Divisors: 1 2 4 747853 1495706 2991412