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52144903 = 229227707
BaseRepresentation
bin1100011011101…
…0101100000111
310122010020100201
43012322230013
5101322114103
65101351331
71202136646
oct306725407
9118106321
1052144903
1127486268
1215568547
13aa59795
146cd535d
1548a051d
hex31bab07

52144903 has 4 divisors (see below), whose sum is σ = 52372840. Its totient is φ = 51916968.

The previous prime is 52144879. The next prime is 52144909. The reversal of 52144903 is 30944125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52144903 - 225 = 18590471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52144909) 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, 113625 + ... + 114082.

It is an arithmetic number, because the mean of its divisors is an integer number (13093210).

Almost surely, 252144903 is an apocalyptic number.

52144903 is a deficient number, since it is larger than the sum of its proper divisors (227937).

52144903 is a wasteful number, since it uses less digits than its factorization.

52144903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227936.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 52144903 is about 7221.1427765971. The cubic root of 52144903 is about 373.5974941828.

The spelling of 52144903 in words is "fifty-two million, one hundred forty-four thousand, nine hundred three".

Divisors: 1 229 227707 52144903