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45805501 = 76543643
BaseRepresentation
bin1010111010111…
…0111110111101
310012012011100001
42232232332331
543211234001
64313434301
71064224510
oct256567675
9105164301
1045805501
1123946395
121340b991
13964a161
146124d77
15404c001
hex2baefbd

45805501 has 4 divisors (see below), whose sum is σ = 52349152. Its totient is φ = 39261852.

The previous prime is 45805483. The next prime is 45805511. The reversal of 45805501 is 10550854.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10550854 = 25275427.

It is not a de Polignac number, because 45805501 - 27 = 45805373 is a prime.

It is a super-2 number, since 2×458055012 = 4196287843722002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45805501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45805511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3271815 + ... + 3271828.

It is an arithmetic number, because the mean of its divisors is an integer number (13087288).

Almost surely, 245805501 is an apocalyptic number.

It is an amenable number.

45805501 is a deficient number, since it is larger than the sum of its proper divisors (6543651).

45805501 is an equidigital number, since it uses as much as digits as its factorization.

45805501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543650.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 45805501 is about 6767.9761376648. The cubic root of 45805501 is about 357.7990742317.

The spelling of 45805501 in words is "forty-five million, eight hundred five thousand, five hundred one".

Divisors: 1 7 6543643 45805501