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445635057 = 3723031531
BaseRepresentation
bin11010100011111…
…101100111110001
31011001112121101010
4122203331213301
51403040310212
6112115301133
714020556400
oct3243754761
91131477333
10445635057
1120960523a
121052aa7a9
137142bcaa
1443283637
15291ca03c
hex1a8fd9f1

445635057 has 12 divisors (see below), whose sum is σ = 691189296. Its totient is φ = 254648520.

The previous prime is 445635053. The next prime is 445635061. The reversal of 445635057 is 750536544.

It is an interprime number because it is at equal distance from previous prime (445635053) and next prime (445635061).

It is not a de Polignac number, because 445635057 - 22 = 445635053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445635053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1515619 + ... + 1515912.

It is an arithmetic number, because the mean of its divisors is an integer number (57599108).

Almost surely, 2445635057 is an apocalyptic number.

It is an amenable number.

445635057 is a deficient number, since it is larger than the sum of its proper divisors (245554239).

445635057 is a wasteful number, since it uses less digits than its factorization.

445635057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031548 (or 3031541 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The square root of 445635057 is about 21110.0700377805. The cubic root of 445635057 is about 763.8236763356.

The spelling of 445635057 in words is "four hundred forty-five million, six hundred thirty-five thousand, fifty-seven".

Divisors: 1 3 7 21 49 147 3031531 9094593 21220717 63662151 148545019 445635057