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2104920 = 233351949
BaseRepresentation
bin1000000001111001011000
310221221102000
420001321120
51014324140
6113041000
723614536
oct10017130
93857360
102104920
111208504
12856160
1358911c
143cb156
152b8a30
hex201e58

2104920 has 64 divisors (see below), whose sum is σ = 7020000. Its totient is φ = 561024.

The previous prime is 2104913. The next prime is 2104933. The reversal of 2104920 is 294012.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2104893 and 2104902.

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, 106 + ... + 2054.

22104920 is an apocalyptic number.

2104920 is a gapful number since it is divisible by the number (20) 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 2104920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3510000).

2104920 is an abundant number, since it is smaller than the sum of its proper divisors (4915080).

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

2104920 is a wasteful number, since it uses less digits than its factorization.

2104920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1959 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2104920 is about 1450.8342427721. The cubic root of 2104920 is about 128.1578456342.

Adding to 2104920 its reverse (294012), we get a palindrome (2398932).

The spelling of 2104920 in words is "two million, one hundred four thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 1949 3898 5847 7796 9745 11694 15592 17541 19490 23388 29235 35082 38980 46776 52623 58470 70164 77960 87705 105246 116940 140328 175410 210492 233880 263115 350820 420984 526230 701640 1052460 2104920