Search a number
-
+
8111214 = 2321937641
BaseRepresentation
bin11110111100010001101110
3120021002111100
4132330101232
54034024324
6445503530
7125641566
oct36742156
916232440
108111214
114640091
122871ba6
1318acc47
141111da6
15aa34c9
hex7bc46e

8111214 has 48 divisors (see below), whose sum is σ = 19028880. Its totient is φ = 2488320.

The previous prime is 8111189. The next prime is 8111239. The reversal of 8111214 is 4121118.

It is an interprime number because it is at equal distance from previous prime (8111189) and next prime (8111239).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12334 + ... + 12974.

It is an arithmetic number, because the mean of its divisors is an integer number (396435).

Almost surely, 28111214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8111214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9514440).

8111214 is an abundant number, since it is smaller than the sum of its proper divisors (10917666).

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

8111214 is a wasteful number, since it uses less digits than its factorization.

8111214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 702 counting only the distinct ones).

The product of its digits is 64, while the sum is 18.

The square root of 8111214 is about 2848.0193117323. The cubic root of 8111214 is about 200.9225215606.

It can be divided in two parts, 811 and 1214, that added together give a square (2025 = 452).

The spelling of 8111214 in words is "eight million, one hundred eleven thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 19 37 38 57 74 111 114 171 222 333 342 641 666 703 1282 1406 1923 2109 3846 4218 5769 6327 11538 12179 12654 23717 24358 36537 47434 71151 73074 109611 142302 213453 219222 426906 450623 901246 1351869 2703738 4055607 8111214