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8121114 = 233592549
BaseRepresentation
bin11110111110101100011010
3120021121002000
4132332230122
54034333424
6450021430
7126012501
oct36765432
916247060
108121114
114647571
122877876
1318b45c1
141115838
15aa63c9
hex7beb1a

8121114 has 32 divisors (see below), whose sum is σ = 18360000. Its totient is φ = 2660112.

The previous prime is 8121103. The next prime is 8121119. The reversal of 8121114 is 4111218.

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8121119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912 + ... + 4460.

It is an arithmetic number, because the mean of its divisors is an integer number (573750).

Almost surely, 28121114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8121114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9180000).

8121114 is an abundant number, since it is smaller than the sum of its proper divisors (10238886).

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

8121114 is a wasteful number, since it uses less digits than its factorization.

8121114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619 (or 2613 counting only the distinct ones).

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

The square root of 8121114 is about 2849.7568317314. The cubic root of 8121114 is about 201.0042324794.

It can be divided in two parts, 81211 and 14, that added together give a square (81225 = 2852).

The spelling of 8121114 in words is "eight million, one hundred twenty-one thousand, one hundred fourteen".

Divisors: 1 2 3 6 9 18 27 54 59 118 177 354 531 1062 1593 2549 3186 5098 7647 15294 22941 45882 68823 137646 150391 300782 451173 902346 1353519 2707038 4060557 8121114