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4320253 = 73143463
BaseRepresentation
bin10000011110101111111101
322010111021101
4100132233331
52101222003
6232333101
751502330
oct20365775
98114241
104320253
112490963
121544191
13b83582
14806617
155a511d
hex41ebfd

4320253 has 16 divisors (see below), whose sum is σ = 5226496. Its totient is φ = 3492720.

The previous prime is 4320247. The next prime is 4320257. The reversal of 4320253 is 3520234.

It is not a de Polignac number, because 4320253 - 217 = 4189181 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4320253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4320257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9100 + ... + 9562.

It is an arithmetic number, because the mean of its divisors is an integer number (326656).

Almost surely, 24320253 is an apocalyptic number.

4320253 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

4320253 is a deficient number, since it is larger than the sum of its proper divisors (906243).

4320253 is a wasteful number, since it uses less digits than its factorization.

4320253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 4320253 is about 2078.5218305325. The cubic root of 4320253 is about 162.8682363209.

Subtracting from 4320253 its sum of digits (19), we obtain a palindrome (4320234).

Adding to 4320253 its reverse (3520234), we get a palindrome (7840487).

The spelling of 4320253 in words is "four million, three hundred twenty thousand, two hundred fifty-three".

Divisors: 1 7 31 43 217 301 463 1333 3241 9331 14353 19909 100471 139363 617179 4320253