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672049249 = 1674319337
BaseRepresentation
bin101000000011101…
…010100001100001
31201211120122020221
4220003222201201
52334021033444
6150404203041
722440216154
oct5003524141
91654518227
10672049249
11315399603
12169099481
13a93040a1
146537dc9b
153e000a84
hex280ea861

672049249 has 8 divisors (see below), whose sum is σ = 677714688. Its totient is φ = 666403680.

The previous prime is 672049229. The next prime is 672049283. The reversal of 672049249 is 942940276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 672049249 - 227 = 537831521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672049229) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 67309 + ... + 76645.

It is an arithmetic number, because the mean of its divisors is an integer number (84714336).

Almost surely, 2672049249 is an apocalyptic number.

It is an amenable number.

672049249 is a deficient number, since it is larger than the sum of its proper divisors (5665439).

672049249 is a wasteful number, since it uses less digits than its factorization.

672049249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9935.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 672049249 is about 25923.9126869383. The cubic root of 672049249 is about 875.9252249686.

The spelling of 672049249 in words is "six hundred seventy-two million, forty-nine thousand, two hundred forty-nine".

Divisors: 1 167 431 9337 71977 1559279 4024247 672049249