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430149 = 31271129
BaseRepresentation
bin1101001000001000101
3210212001110
41221001011
5102231044
613115233
73441036
oct1510105
9725043
10430149
112741a5
12188b19
13120a35
14b2a8d
15876b9
hex69045

430149 has 8 divisors (see below), whose sum is σ = 578560. Its totient is φ = 284256.

The previous prime is 430147. The next prime is 430193. The reversal of 430149 is 941034.

430149 = 1462 + 1472 + ... + 1632.

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

It is not a de Polignac number, because 430149 - 21 = 430147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

430149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184 + ... + 945.

It is an arithmetic number, because the mean of its divisors is an integer number (72320).

2430149 is an apocalyptic number.

It is an amenable number.

430149 is a deficient number, since it is larger than the sum of its proper divisors (148411).

430149 is a wasteful number, since it uses less digits than its factorization.

430149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 430149 is about 655.8574540249. The cubic root of 430149 is about 75.4871401865.

Subtracting from 430149 its sum of digits (21), we obtain a triangular number (430128 = T927).

The spelling of 430149 in words is "four hundred thirty thousand, one hundred forty-nine".

Divisors: 1 3 127 381 1129 3387 143383 430149