Search a number
-
+
18882100 = 2252316091
BaseRepresentation
bin100100000000…
…1111000110100
31022112022101001
41020001320310
514313211400
61512413044
7316331566
oct110017064
938468331
1018882100
11a727446
1263a7184
133bb1653
142717336
1519cea6a
hex1201e34

18882100 has 36 divisors (see below), whose sum is σ = 42302848. Its totient is φ = 7308000.

The previous prime is 18882049. The next prime is 18882113. The reversal of 18882100 is 128881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55 + ... + 6145.

Almost surely, 218882100 is an apocalyptic number.

18882100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18882100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21151424).

18882100 is an abundant number, since it is smaller than the sum of its proper divisors (23420748).

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

18882100 is a wasteful number, since it uses less digits than its factorization.

18882100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136 (or 6129 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 18882100 is about 4345.3538405980. The cubic root of 18882100 is about 266.2870814657.

The spelling of 18882100 in words is "eighteen million, eight hundred eighty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 31 50 62 100 124 155 310 620 775 1550 3100 6091 12182 24364 30455 60910 121820 152275 188821 304550 377642 609100 755284 944105 1888210 3776420 4720525 9441050 18882100