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447452973 = 32114519727
BaseRepresentation
bin11010101010111…
…001011100101101
31011011221222002100
4122222321130231
51404021443343
6112222245313
714042200422
oct3252713455
91134858070
10447452973
1120a637050
12105a26839
1371917596
14435d7d49
15294389d3
hex1aab972d

447452973 has 12 divisors (see below), whose sum is σ = 705077568. Its totient is φ = 271183560.

The previous prime is 447452939. The next prime is 447452981. The reversal of 447452973 is 379254744.

It is not a de Polignac number, because 447452973 - 220 = 446404397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447452273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2259765 + ... + 2259962.

It is an arithmetic number, because the mean of its divisors is an integer number (58756464).

Almost surely, 2447452973 is an apocalyptic number.

It is an amenable number.

447452973 is a deficient number, since it is larger than the sum of its proper divisors (257624595).

447452973 is a wasteful number, since it uses less digits than its factorization.

447452973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519744 (or 4519741 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 447452973 is about 21153.0842432020. The cubic root of 447452973 is about 764.8609102503.

The spelling of 447452973 in words is "four hundred forty-seven million, four hundred fifty-two thousand, nine hundred seventy-three".

Divisors: 1 3 9 11 33 99 4519727 13559181 40677543 49716997 149150991 447452973