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24428069 = 127192347
BaseRepresentation
bin101110100101…
…1111000100101
31200222002000022
41131023320211
522223144234
62231324525
7414430601
oct135137045
950862008
1024428069
1112875196
128220745
1350a3aa3
14335c501
152227e2e
hex174be25

24428069 has 4 divisors (see below), whose sum is σ = 24620544. Its totient is φ = 24235596.

The previous prime is 24428051. The next prime is 24428081. The reversal of 24428069 is 96082442.

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.

It is a cyclic number.

It is not a de Polignac number, because 24428069 - 220 = 23379493 is a prime.

It is a super-2 number, since 2×244280692 = 1193461110137522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24428009) 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, 96047 + ... + 96300.

It is an arithmetic number, because the mean of its divisors is an integer number (6155136).

Almost surely, 224428069 is an apocalyptic number.

It is an amenable number.

24428069 is a deficient number, since it is larger than the sum of its proper divisors (192475).

24428069 is a wasteful number, since it uses less digits than its factorization.

24428069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192474.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 24428069 is about 4942.4759989301. The cubic root of 24428069 is about 290.1547687549.

The spelling of 24428069 in words is "twenty-four million, four hundred twenty-eight thousand, sixty-nine".

Divisors: 1 127 192347 24428069