Search a number
-
+
1272442 = 21913331
BaseRepresentation
bin100110110101001111010
32101122110111
410312221322
5311204232
643134534
713546513
oct4665172
92348414
101272442
1179a006
1251444a
13357232
14251a0a
151a2047
hex136a7a

1272442 has 8 divisors (see below), whose sum is σ = 1919232. Its totient is φ = 632700.

The previous prime is 1272421. The next prime is 1272443. The reversal of 1272442 is 2442721.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1272443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (239904).

21272442 is an apocalyptic number.

1272442 is a deficient number, since it is larger than the sum of its proper divisors (646790).

1272442 is a wasteful number, since it uses less digits than its factorization.

1272442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524.

The product of its digits is 896, while the sum is 22.

The square root of 1272442 is about 1128.0257089269. The cubic root of 1272442 is about 108.3625788235.

The spelling of 1272442 in words is "one million, two hundred seventy-two thousand, four hundred forty-two".

Divisors: 1 2 191 382 3331 6662 636221 1272442