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1225144302 = 23204190717
BaseRepresentation
bin100100100000110…
…0011011111101110
310011101022210000220
41021001203133232
510002114104202
6321323032210
742234361164
oct11101433756
93141283026
101225144302
11579620058
122a236b666
13166a89275
14b89d7234
1572855abc
hex490637ee

1225144302 has 8 divisors (see below), whose sum is σ = 2450288616. Its totient is φ = 408381432.

The previous prime is 1225144279. The next prime is 1225144309. The reversal of 1225144302 is 2034415221.

1225144302 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1225144302 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225144309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102095353 + ... + 102095364.

It is an arithmetic number, because the mean of its divisors is an integer number (306286077).

Almost surely, 21225144302 is an apocalyptic number.

1225144302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225144302 is a wasteful number, since it uses less digits than its factorization.

1225144302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204190722.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1225144302 is about 35002.0613964378. The cubic root of 1225144302 is about 1070.0294928838.

Adding to 1225144302 its reverse (2034415221), we get a palindrome (3259559523).

The spelling of 1225144302 in words is "one billion, two hundred twenty-five million, one hundred forty-four thousand, three hundred two".

Divisors: 1 2 3 6 204190717 408381434 612572151 1225144302