Search a number
-
+
1391214 = 2311107197
BaseRepresentation
bin101010011101001101110
32121200101110
411103221232
5324004324
645452450
714553006
oct5235156
92550343
101391214
11870270
12571126
13399306
14283006
151c7329
hex153a6e

1391214 has 32 divisors (see below), whose sum is σ = 3079296. Its totient is φ = 415520.

The previous prime is 1391207. The next prime is 1391233. The reversal of 1391214 is 4121931.

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, 6964 + ... + 7160.

It is an arithmetic number, because the mean of its divisors is an integer number (96228).

21391214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1391214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1539648).

1391214 is an abundant number, since it is smaller than the sum of its proper divisors (1688082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391214 is a wasteful number, since it uses less digits than its factorization.

1391214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its digits is 216, while the sum is 21.

The square root of 1391214 is about 1179.4973505693. The cubic root of 1391214 is about 111.6343838760.

The spelling of 1391214 in words is "one million, three hundred ninety-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 11 22 33 66 107 197 214 321 394 591 642 1177 1182 2167 2354 3531 4334 6501 7062 13002 21079 42158 63237 126474 231869 463738 695607 1391214