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426999 = 3317449
BaseRepresentation
bin1101000001111110111
3210200201210
41220033313
5102130444
613052503
73425616
oct1501767
9720653
10426999
112718a1
12187133
1311c481
14b187d
15867b9
hex683f7

426999 has 8 divisors (see below), whose sum is σ = 572400. Its totient is φ = 283136.

The previous prime is 426997. The next prime is 427001. The reversal of 426999 is 999624.

It is an interprime number because it is at equal distance from previous prime (426997) and next prime (427001).

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 426999 - 21 = 426997 is a prime.

426999 is a modest number, since divided by 999 gives 426 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426997) 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, 727 + ... + 1175.

It is an arithmetic number, because the mean of its divisors is an integer number (71550).

2426999 is an apocalyptic number.

426999 is a deficient number, since it is larger than the sum of its proper divisors (145401).

426999 is a wasteful number, since it uses less digits than its factorization.

426999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769.

The product of its digits is 34992, while the sum is 39.

The square root of 426999 is about 653.4516049410. The cubic root of 426999 is about 75.3024233403.

The spelling of 426999 in words is "four hundred twenty-six thousand, nine hundred ninety-nine".

Divisors: 1 3 317 449 951 1347 142333 426999