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28232912629 is a prime number
BaseRepresentation
bin11010010010110100…
…000000111011110101
32200212121012120012201
4122102310000323311
5430310111201004
620545305144501
72016431540425
oct322264007365
980777176181
1028232912629
1110a7881a149
12557b18b131
13287c25997c
14151b89c485
15b039226a4
hex692d00ef5

28232912629 has 2 divisors, whose sum is σ = 28232912630. Its totient is φ = 28232912628.

The previous prime is 28232912579. The next prime is 28232912657. The reversal of 28232912629 is 92621923282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24483799729 + 3749112900 = 156473^2 + 61230^2 .

It is a cyclic number.

It is not a de Polignac number, because 28232912629 - 213 = 28232904437 is a prime.

It is a super-3 number, since 3×282329126293 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28232912699) 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 as a sum of consecutive naturals, namely, 14116456314 + 14116456315.

It is an arithmetic number, because the mean of its divisors is an integer number (14116456315).

Almost surely, 228232912629 is an apocalyptic number.

It is an amenable number.

28232912629 is a deficient number, since it is larger than the sum of its proper divisors (1).

28232912629 is an equidigital number, since it uses as much as digits as its factorization.

28232912629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The spelling of 28232912629 in words is "twenty-eight billion, two hundred thirty-two million, nine hundred twelve thousand, six hundred twenty-nine".