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16007049 = 321778561
BaseRepresentation
bin111101000011…
…111110001001
31010010020112200
4331003332021
513044211144
61331030413
7253025532
oct75037611
933106480
1016007049
119043373
12543b409
133415b36
1421a9689
151612c69
hexf43f89

16007049 has 6 divisors (see below), whose sum is σ = 23121306. Its totient is φ = 10671360.

The previous prime is 16007041. The next prime is 16007083. The reversal of 16007049 is 94070061.

It can be written as a sum of positive squares in only one way, i.e., 12027024 + 3980025 = 3468^2 + 1995^2 .

It is not a de Polignac number, because 16007049 - 23 = 16007041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16007041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 889272 + ... + 889289.

It is an arithmetic number, because the mean of its divisors is an integer number (3853551).

Almost surely, 216007049 is an apocalyptic number.

It is an amenable number.

16007049 is a deficient number, since it is larger than the sum of its proper divisors (7114257).

16007049 is a wasteful number, since it uses less digits than its factorization.

16007049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778567 (or 1778564 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 16007049 is about 4000.8810279737. The cubic root of 16007049 is about 252.0212094771.

It can be divided in two parts, 1600 and 7049, that added together give a square (8649 = 932).

The spelling of 16007049 in words is "sixteen million, seven thousand, forty-nine".

Divisors: 1 3 9 1778561 5335683 16007049