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52291469 is a prime number
BaseRepresentation
bin1100011101111…
…0011110001101
310122101200102002
43013132132031
5101341311334
65104442045
71203320156
oct307363615
9118350362
1052291469
112757639a
1215619325
13aaab3c9
146d3292d
1548cdb7e
hex31de78d

52291469 has 2 divisors, whose sum is σ = 52291470. Its totient is φ = 52291468.

The previous prime is 52291453. The next prime is 52291511. The reversal of 52291469 is 96419225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48469444 + 3822025 = 6962^2 + 1955^2 .

It is a cyclic number.

It is not a de Polignac number, because 52291469 - 24 = 52291453 is a prime.

It is a super-2 number, since 2×522914692 = 5468795460355922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52291409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26145734 + 26145735.

It is an arithmetic number, because the mean of its divisors is an integer number (26145735).

Almost surely, 252291469 is an apocalyptic number.

It is an amenable number.

52291469 is a deficient number, since it is larger than the sum of its proper divisors (1).

52291469 is an equidigital number, since it uses as much as digits as its factorization.

52291469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 52291469 is about 7231.2840491852. The cubic root of 52291469 is about 373.9471957822.

The spelling of 52291469 in words is "fifty-two million, two hundred ninety-one thousand, four hundred sixty-nine".