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445630743 = 3289556343
BaseRepresentation
bin11010100011111…
…100100100010111
31011001112101110100
4122203330210113
51403040140433
6112115225143
714020540665
oct3243744427
91131471410
10445630743
11209601a78
121052a81b3
137142a03c
1443281c35
15291c8b13
hex1a8fc917

445630743 has 12 divisors (see below), whose sum is σ = 650922480. Its totient is φ = 293748576.

The previous prime is 445630709. The next prime is 445630777. The reversal of 445630743 is 347036544.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (445630709) and next prime (445630777).

It is not a de Polignac number, because 445630743 - 210 = 445629719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445630698 and 445630707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445630343) 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, 277371 + ... + 278972.

It is an arithmetic number, because the mean of its divisors is an integer number (54243540).

Almost surely, 2445630743 is an apocalyptic number.

445630743 is a deficient number, since it is larger than the sum of its proper divisors (205291737).

445630743 is a wasteful number, since it uses less digits than its factorization.

445630743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556438 (or 556435 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The square root of 445630743 is about 21109.9678588102. The cubic root of 445630743 is about 763.8212115789.

The spelling of 445630743 in words is "four hundred forty-five million, six hundred thirty thousand, seven hundred forty-three".

Divisors: 1 3 9 89 267 801 556343 1669029 5007087 49514527 148543581 445630743