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10421426 = 26597907
BaseRepresentation
bin100111110000…
…010010110010
3201121110111202
4213300102302
510131441201
61011211202
7154403111
oct47602262
921543452
1010421426
115978854
1235a6b02
13220b632
141553c78
15dacc6b
hex9f04b2

10421426 has 8 divisors (see below), whose sum is σ = 15657840. Its totient is φ = 5202148.

The previous prime is 10421417. The next prime is 10421429. The reversal of 10421426 is 62412401.

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

It is a super-2 number, since 2×104214262 = 217212239746952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10421398 and 10421407.

It is not an unprimeable number, because it can be changed into a prime (10421429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2636 + ... + 5271.

It is an arithmetic number, because the mean of its divisors is an integer number (1957230).

Almost surely, 210421426 is an apocalyptic number.

10421426 is the 2636-th pentagonal number.

10421426 is a deficient number, since it is larger than the sum of its proper divisors (5236414).

10421426 is an equidigital number, since it uses as much as digits as its factorization.

10421426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8568.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 10421426 is about 3228.2233503895. The cubic root of 10421426 is about 218.4283724047.

Adding to 10421426 its reverse (62412401), we get a palindrome (72833827).

The spelling of 10421426 in words is "ten million, four hundred twenty-one thousand, four hundred twenty-six".

Divisors: 1 2 659 1318 7907 15814 5210713 10421426