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2130174 = 232118343
BaseRepresentation
bin1000001000000011111110
311000020001100
420020003332
51021131144
6113353530
724051264
oct10100376
94006040
102130174
111225482
128688a6
13597777
143d6434
152c1269
hex2080fe

2130174 has 12 divisors (see below), whose sum is σ = 4615416. Its totient is φ = 710052.

The previous prime is 2130173. The next prime is 2130209. The reversal of 2130174 is 4710312.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 118343 = 2130174 / (2 + 1 + 3 + 0 + 1 + 7 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59154 + ... + 59189.

It is an arithmetic number, because the mean of its divisors is an integer number (384618).

22130174 is an apocalyptic number.

2130174 is an abundant number, since it is smaller than the sum of its proper divisors (2485242).

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

2130174 is a wasteful number, since it uses less digits than its factorization.

2130174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118351 (or 118348 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2130174 is about 1459.5115621330. The cubic root of 2130174 is about 128.6683385765.

Adding to 2130174 its reverse (4710312), we get a palindrome (6840486).

It can be divided in two parts, 2130 and 174, that added together give a square (2304 = 482).

The spelling of 2130174 in words is "two million, one hundred thirty thousand, one hundred seventy-four".

Divisors: 1 2 3 6 9 18 118343 236686 355029 710058 1065087 2130174