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712144361 = 2185932579
BaseRepresentation
bin101010011100100…
…111010111101001
31211122000200102002
4222130213113221
52424302104421
6154355420345
723435061425
oct5234472751
91748020362
10712144361
11335a94665
1217a5b46b5
13b4701cc6
146a819b85
15427c0b0b
hex2a7275e9

712144361 has 4 divisors (see below), whose sum is σ = 712198800. Its totient is φ = 712089924.

The previous prime is 712144343. The next prime is 712144373. The reversal of 712144361 is 163441217.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-712144361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712144861) 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, 5570 + ... + 38148.

It is an arithmetic number, because the mean of its divisors is an integer number (178049700).

Almost surely, 2712144361 is an apocalyptic number.

It is an amenable number.

712144361 is a deficient number, since it is larger than the sum of its proper divisors (54439).

712144361 is a wasteful number, since it uses less digits than its factorization.

712144361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54438.

The product of its digits is 4032, while the sum is 29.

The square root of 712144361 is about 26686.0330697539. The cubic root of 712144361 is about 893.0093647640.

Adding to 712144361 its reverse (163441217), we get a palindrome (875585578).

The spelling of 712144361 in words is "seven hundred twelve million, one hundred forty-four thousand, three hundred sixty-one".

Divisors: 1 21859 32579 712144361