Search a number
-
+
1272248 = 231091459
BaseRepresentation
bin100110110100110111000
32101122012022
410312212320
5311202443
643134012
713546115
oct4664670
92348168
101272248
1179994a
12514308
13357113
1425190c
151a1e68
hex1369b8

1272248 has 16 divisors (see below), whose sum is σ = 2409000. Its totient is φ = 629856.

The previous prime is 1272247. The next prime is 1272253. The reversal of 1272248 is 8422721.

It is a super-2 number, since 2×12722482 = 3237229947008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143 + ... + 1601.

21272248 is an apocalyptic number.

It is an amenable number.

1272248 is a deficient number, since it is larger than the sum of its proper divisors (1136752).

1272248 is a wasteful number, since it uses less digits than its factorization.

1272248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1570 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 1272248 is about 1127.9397147011. The cubic root of 1272248 is about 108.3570714582.

Adding to 1272248 its reverse (8422721), we get a palindrome (9694969).

The spelling of 1272248 in words is "one million, two hundred seventy-two thousand, two hundred forty-eight".

Divisors: 1 2 4 8 109 218 436 872 1459 2918 5836 11672 159031 318062 636124 1272248