Search a number
-
+
1386386 = 21394987
BaseRepresentation
bin101010010011110010010
32121102202122
411102132102
5323331021
645414242
714532641
oct5223622
92542678
101386386
11867681
1256a382
13397061
14281358
151c5bab
hex152792

1386386 has 8 divisors (see below), whose sum is σ = 2094960. Its totient is φ = 688068.

The previous prime is 1386383. The next prime is 1386419. The reversal of 1386386 is 6836831.

It is a happy number.

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

It is a super-2 number, since 2×13863862 = 3844132281992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1386383) 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, 2216 + ... + 2771.

It is an arithmetic number, because the mean of its divisors is an integer number (261870).

21386386 is an apocalyptic number.

1386386 is a deficient number, since it is larger than the sum of its proper divisors (708574).

1386386 is a wasteful number, since it uses less digits than its factorization.

1386386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128.

The product of its digits is 20736, while the sum is 35.

The square root of 1386386 is about 1177.4489373217. The cubic root of 1386386 is about 111.5050973961.

The spelling of 1386386 in words is "one million, three hundred eighty-six thousand, three hundred eighty-six".

Divisors: 1 2 139 278 4987 9974 693193 1386386