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4228510729 = 650272
BaseRepresentation
bin1111110000001001…
…1111010000001001
3101220200200121020111
43330002133100021
532124444320404
61535331354321
7206533514422
oct37402372011
911820617214
104228510729
11187a97a773
129a01529a1
1352507bb71
142c1838649
1519b362104
hexfc09f409

4228510729 has 3 divisors (see below), whose sum is σ = 4228575757. Its totient is φ = 4228445702.

The previous prime is 4228510723. The next prime is 4228510801. The reversal of 4228510729 is 9270158224.

The square root of 4228510729 is 65027.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 4228510729 - 23 = 4228510721 is a prime.

It is a super-2 number, since 2×42285107292 = 35760605970536222882, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4228510691 and 4228510700.

It is not an unprimeable number, because it can be changed into a prime (4228510721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 32514 + ... + 97540.

Almost surely, 24228510729 is an apocalyptic number.

4228510729 is the 65027-th square number.

4228510729 is the 32514-th centered octagonal number.

It is an amenable number.

4228510729 is a deficient number, since it is larger than the sum of its proper divisors (65028).

4228510729 is an frugal number, since it uses more digits than its factorization.

4228510729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130054 (or 65027 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The cubic root of 4228510729 is about 1617.0712119618.

The spelling of 4228510729 in words is "four billion, two hundred twenty-eight million, five hundred ten thousand, seven hundred twenty-nine".

Divisors: 1 65027 4228510729