Search a number
-
+
1226887 = 19312083
BaseRepresentation
bin100101011100010000111
32022022222021
410223202013
5303230022
642144011
713266634
oct4534207
92268867
101226887
11768862
124b2007
1333c58c
1423d18b
151937c7
hex12b887

1226887 has 8 divisors (see below), whose sum is σ = 1333760. Its totient is φ = 1124280.

The previous prime is 1226867. The next prime is 1226891. The reversal of 1226887 is 7886221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226887 - 219 = 702599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226807) 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, 453 + ... + 1630.

It is an arithmetic number, because the mean of its divisors is an integer number (166720).

21226887 is an apocalyptic number.

1226887 is a deficient number, since it is larger than the sum of its proper divisors (106873).

1226887 is a wasteful number, since it uses less digits than its factorization.

1226887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133.

The product of its digits is 10752, while the sum is 34.

The square root of 1226887 is about 1107.6493127340. The cubic root of 1226887 is about 107.0536604520.

The spelling of 1226887 in words is "one million, two hundred twenty-six thousand, eight hundred eighty-seven".

Divisors: 1 19 31 589 2083 39577 64573 1226887