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545996457 = 353760727
BaseRepresentation
bin100000100010110…
…011111010101001
31102001101111100000
4200202303322221
52104233341312
6130102333213
716346615256
oct4042637251
91361344300
10545996457
11260223246
12132a2a209
138916b136
145272a42d
1532e01adc
hex208b3ea9

545996457 has 24 divisors (see below), whose sum is σ = 839989696. Its totient is φ = 354154032.

The previous prime is 545996441. The next prime is 545996489. The reversal of 545996457 is 754699545.

545996457 is a `hidden beast` number, since 5 + 4 + 599 + 6 + 45 + 7 = 666.

It is not a de Polignac number, because 545996457 - 24 = 545996441 is a prime.

It is a super-2 number, since 2×5459964572 = 596224262113105698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545996557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21373 + ... + 39354.

Almost surely, 2545996457 is an apocalyptic number.

It is an amenable number.

545996457 is a deficient number, since it is larger than the sum of its proper divisors (293993239).

545996457 is an equidigital number, since it uses as much as digits as its factorization.

545996457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60779 (or 60767 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The square root of 545996457 is about 23366.5670777716. The cubic root of 545996457 is about 817.3284346643.

The spelling of 545996457 in words is "five hundred forty-five million, nine hundred ninety-six thousand, four hundred fifty-seven".

Divisors: 1 3 9 27 37 81 111 243 333 999 2997 8991 60727 182181 546543 1639629 2246899 4918887 6740697 14756661 20222091 60666273 181998819 545996457