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26630423 = 67397469
BaseRepresentation
bin110010110010…
…1100100010111
31212002222001222
41211211210113
523304133143
62350440555
7442232501
oct145454427
955088058
1026630423
1114039916
128b0315b
135695361
143772d71
152510768
hex1965917

26630423 has 4 divisors (see below), whose sum is σ = 27027960. Its totient is φ = 26232888.

The previous prime is 26630411. The next prime is 26630431. The reversal of 26630423 is 32403662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32403662 = 216201831.

It is a cyclic number.

It is not a de Polignac number, because 26630423 - 24 = 26630407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26630392 and 26630401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26633423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198668 + ... + 198801.

It is an arithmetic number, because the mean of its divisors is an integer number (6756990).

Almost surely, 226630423 is an apocalyptic number.

26630423 is a deficient number, since it is larger than the sum of its proper divisors (397537).

26630423 is an equidigital number, since it uses as much as digits as its factorization.

26630423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397536.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 26630423 is about 5160.4673237993. The cubic root of 26630423 is about 298.6249029536.

The spelling of 26630423 in words is "twenty-six million, six hundred thirty thousand, four hundred twenty-three".

Divisors: 1 67 397469 26630423