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672868484 = 22168217121
BaseRepresentation
bin101000000110110…
…010100010000100
31201220010021000222
4220012302202010
52334223242414
6150433523512
722450200461
oct5006624204
91656107028
10672868484
113158a9062
12169413598
13a952cc42
1465514668
153e11368e
hex281b2884

672868484 has 6 divisors (see below), whose sum is σ = 1177519854. Its totient is φ = 336434240.

The previous prime is 672868477. The next prime is 672868487. The reversal of 672868484 is 484868276.

It can be written as a sum of positive squares in only one way, i.e., 546530884 + 126337600 = 23378^2 + 11240^2 .

It is not an unprimeable number, because it can be changed into a prime (672868487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84108557 + ... + 84108564.

It is an arithmetic number, because the mean of its divisors is an integer number (196253309).

Almost surely, 2672868484 is an apocalyptic number.

It is an amenable number.

672868484 is a deficient number, since it is larger than the sum of its proper divisors (504651370).

672868484 is a wasteful number, since it uses less digits than its factorization.

672868484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168217125 (or 168217123 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 53.

The square root of 672868484 is about 25939.7086336759. The cubic root of 672868484 is about 876.2810010854.

The spelling of 672868484 in words is "six hundred seventy-two million, eight hundred sixty-eight thousand, four hundred eighty-four".

Divisors: 1 2 4 168217121 336434242 672868484