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26428423 = 77947791
BaseRepresentation
bin110010011010…
…0010000000111
31211201200222111
41210310100013
523231202143
62342241451
7440431540
oct144642007
954650874
1026428423
1113a1107a
128a26287
135624428
14371d4c7
1524c099d
hex1934407

26428423 has 8 divisors (see below), whose sum is σ = 30586880. Its totient is φ = 22365720.

The previous prime is 26428417. The next prime is 26428427. The reversal of 26428423 is 32482462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26428423 - 213 = 26420231 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 (26428427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23343 + ... + 24448.

It is an arithmetic number, because the mean of its divisors is an integer number (3823360).

Almost surely, 226428423 is an apocalyptic number.

26428423 is a deficient number, since it is larger than the sum of its proper divisors (4158457).

26428423 is an equidigital number, since it uses as much as digits as its factorization.

26428423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47877.

The product of its digits is 18432, while the sum is 31.

The square root of 26428423 is about 5140.8581968383. The cubic root of 26428423 is about 297.8679316589.

The spelling of 26428423 in words is "twenty-six million, four hundred twenty-eight thousand, four hundred twenty-three".

Divisors: 1 7 79 553 47791 334537 3775489 26428423