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445403241 = 3256938693
BaseRepresentation
bin11010100011000…
…101000001101001
31011001002211101100
4122203011001221
51403010400431
6112110312013
714015602503
oct3243050151
91131084340
10445403241
11209467058
121051b8609
137137a61a
1443222d73
15291814e6
hex1a8c5069

445403241 has 12 divisors (see below), whose sum is σ = 643547268. Its totient is φ = 296849184.

The previous prime is 445403239. The next prime is 445403243. The reversal of 445403241 is 142304544.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (445403239) and next prime (445403243).

It can be written as a sum of positive squares in 2 ways, for example, as 37161216 + 408242025 = 6096^2 + 20205^2 .

It is not a de Polignac number, because 445403241 - 21 = 445403239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445403243) 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, 46891 + ... + 55583.

It is an arithmetic number, because the mean of its divisors is an integer number (53628939).

Almost surely, 2445403241 is an apocalyptic number.

It is an amenable number.

445403241 is a deficient number, since it is larger than the sum of its proper divisors (198144027).

445403241 is a wasteful number, since it uses less digits than its factorization.

445403241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14392 (or 14389 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 445403241 is about 21104.5786738328. The cubic root of 445403241 is about 763.6912082556.

Adding to 445403241 its reverse (142304544), we get a palindrome (587707785).

The spelling of 445403241 in words is "four hundred forty-five million, four hundred three thousand, two hundred forty-one".

Divisors: 1 3 9 5693 8693 17079 26079 51237 78237 49489249 148467747 445403241