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2103990 = 235743233
BaseRepresentation
bin1000000001101010110110
310221220010120
420001222312
51014311430
6113032410
723612040
oct10015266
93856116
102103990
111207839
12855706
13588885
143caa90
152b8610
hex201ab6

2103990 has 64 divisors (see below), whose sum is σ = 5930496. Its totient is φ = 467712.

The previous prime is 2103989. The next prime is 2104013. The reversal of 2103990 is 993012.

It is a happy number.

2103990 is nontrivially palindromic in base 13.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2103990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8914 + ... + 9146.

It is an arithmetic number, because the mean of its divisors is an integer number (92664).

22103990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2965248).

2103990 is an abundant number, since it is smaller than the sum of its proper divisors (3826506).

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

2103990 is a wasteful number, since it uses less digits than its factorization.

2103990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 2103990 is about 1450.5137021069. The cubic root of 2103990 is about 128.1389685346.

The spelling of 2103990 in words is "two million, one hundred three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 43 70 86 105 129 210 215 233 258 301 430 466 602 645 699 903 1165 1290 1398 1505 1631 1806 2330 3010 3262 3495 4515 4893 6990 8155 9030 9786 10019 16310 20038 24465 30057 48930 50095 60114 70133 100190 140266 150285 210399 300570 350665 420798 701330 1051995 2103990