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2125998 = 232747359
BaseRepresentation
bin1000000111000010101110
311000000022200
420013002232
51021012443
6113322330
724033150
oct10070256
94000280
102125998
111222326
128663a6
135958b4
143d4ad0
152bedd3
hex2070ae

2125998 has 48 divisors (see below), whose sum is σ = 5391360. Its totient is φ = 592848.

The previous prime is 2125993. The next prime is 2126017. The reversal of 2125998 is 8995212.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5743 + ... + 6101.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

22125998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2695680).

2125998 is an abundant number, since it is smaller than the sum of its proper divisors (3265362).

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

2125998 is a wasteful number, since it uses less digits than its factorization.

2125998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 418 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 2125998 is about 1458.0802447053. The cubic root of 2125998 is about 128.5842029635.

The spelling of 2125998 in words is "two million, one hundred twenty-five thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 47 63 94 126 141 282 329 359 423 658 718 846 987 1077 1974 2154 2513 2961 3231 5026 5922 6462 7539 15078 16873 22617 33746 45234 50619 101238 118111 151857 236222 303714 354333 708666 1062999 2125998