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10245220045 = 52049044009
BaseRepresentation
bin10011000101010100…
…11010011011001101
3222110000012002210021
421202222122123031
5131440234020140
64412342342141
7511612635124
oct114252323315
928400162707
1010245220045
114388183505
121b9b12a951
13c737482a8
146d2956abb
153ee69ab4a
hex262a9a6cd

10245220045 has 4 divisors (see below), whose sum is σ = 12294264060. Its totient is φ = 8196176032.

The previous prime is 10245220019. The next prime is 10245220049. The reversal of 10245220045 is 54002254201.

10245220045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54002254201 = 77714607743.

It can be written as a sum of positive squares in 2 ways, for example, as 7993432836 + 2251787209 = 89406^2 + 47453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10245220045 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10245220049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024522000 + ... + 1024522009.

It is an arithmetic number, because the mean of its divisors is an integer number (3073566015).

Almost surely, 210245220045 is an apocalyptic number.

It is an amenable number.

10245220045 is a deficient number, since it is larger than the sum of its proper divisors (2049044015).

10245220045 is an equidigital number, since it uses as much as digits as its factorization.

10245220045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049044014.

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 10245220045 its reverse (54002254201), we get a palindrome (64247474246).

The spelling of 10245220045 in words is "ten billion, two hundred forty-five million, two hundred twenty thousand, forty-five".

Divisors: 1 5 2049044009 10245220045