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1238223 = 3758963
BaseRepresentation
bin100101110010011001111
32022220112010
410232103033
5304110343
642312303
713344660
oct4562317
92286463
101238223
11776328
124b8693
1334479c
14243367
15196d33
hex12e4cf

1238223 has 8 divisors (see below), whose sum is σ = 1886848. Its totient is φ = 707544.

The previous prime is 1238219. The next prime is 1238267. The reversal of 1238223 is 3228321.

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

It is not a de Polignac number, because 1238223 - 22 = 1238219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 58963 = 1238223 / (1 + 2 + 3 + 8 + 2 + 2 + 3).

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1238223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238273) 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, 29461 + ... + 29502.

It is an arithmetic number, because the mean of its divisors is an integer number (235856).

21238223 is an apocalyptic number.

1238223 is a deficient number, since it is larger than the sum of its proper divisors (648625).

1238223 is an equidigital number, since it uses as much as digits as its factorization.

1238223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58973.

The product of its digits is 576, while the sum is 21.

The square root of 1238223 is about 1112.7546899474. The cubic root of 1238223 is about 107.3823627533.

The spelling of 1238223 in words is "one million, two hundred thirty-eight thousand, two hundred twenty-three".

Divisors: 1 3 7 21 58963 176889 412741 1238223