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445400033 = 13193158169
BaseRepresentation
bin11010100011000…
…100001111100001
31011001002122222112
4122203010033201
51403010300113
6112110245105
714015560241
oct3243041741
91131078875
10445400033
11209464701
121051b6795
1371379020
1443221b21
15291805a8
hex1a8c43e1

445400033 has 16 divisors (see below), whose sum is σ = 521203200. Its totient is φ = 376928640.

The previous prime is 445400023. The next prime is 445400047. The reversal of 445400033 is 330004544.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 445400033 - 214 = 445383649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445399981 and 445400008.

It is not an unprimeable number, because it can be changed into a prime (445400003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21428 + ... + 36741.

It is an arithmetic number, because the mean of its divisors is an integer number (32575200).

Almost surely, 2445400033 is an apocalyptic number.

It is an amenable number.

445400033 is a deficient number, since it is larger than the sum of its proper divisors (75803167).

445400033 is a wasteful number, since it uses less digits than its factorization.

445400033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58232.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 445400033 is about 21104.5026712311. The cubic root of 445400033 is about 763.6893747655.

Adding to 445400033 its reverse (330004544), we get a palindrome (775404577).

The spelling of 445400033 in words is "four hundred forty-five million, four hundred thousand, thirty-three".

Divisors: 1 13 19 31 247 403 589 7657 58169 756197 1105211 1803239 14367743 23442107 34261541 445400033