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1393238 = 271183109
BaseRepresentation
bin101010100001001010110
32121210011102
411110021112
5324040423
645510102
714561630
oct5241126
92553142
101393238
11871840
12572332
1339a202
14283a50
151c7c28
hex154256

1393238 has 32 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 531360.

The previous prime is 1393229. The next prime is 1393241. The reversal of 1393238 is 8323931.

1393238 is nontrivially palindromic in base 5.

It is a super-2 number, since 2×13932382 = 3882224249288, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1393238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12728 + ... + 12836.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

21393238 is an apocalyptic number.

1393238 is a deficient number, since it is larger than the sum of its proper divisors (1267882).

1393238 is a wasteful number, since it uses less digits than its factorization.

1393238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212.

The product of its digits is 3888, while the sum is 29.

The square root of 1393238 is about 1180.3550313359. The cubic root of 1393238 is about 111.6884945325.

The spelling of 1393238 in words is "one million, three hundred ninety-three thousand, two hundred thirty-eight".

Divisors: 1 2 7 11 14 22 77 83 109 154 166 218 581 763 913 1162 1199 1526 1826 2398 6391 8393 9047 12782 16786 18094 63329 99517 126658 199034 696619 1393238