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2212530 = 23573751
BaseRepresentation
bin1000011100001010110010
311011102000120
420130022302
51031300110
6115231110
724543345
oct10341262
94142016
102212530
111281341
128a8496
135c60b8
1441845c
152da870
hex21c2b2

2212530 has 16 divisors (see below), whose sum is σ = 5310144. Its totient is φ = 590000.

The previous prime is 2212523. The next prime is 2212537. The reversal of 2212530 is 352122.

It is an interprime number because it is at equal distance from previous prime (2212523) and next prime (2212537).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2212537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36846 + ... + 36905.

It is an arithmetic number, because the mean of its divisors is an integer number (331884).

22212530 is an apocalyptic number.

2212530 is an abundant number, since it is smaller than the sum of its proper divisors (3097614).

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

2212530 is a wasteful number, since it uses less digits than its factorization.

2212530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73761.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2212530 is about 1487.4575624198. The cubic root of 2212530 is about 130.3055927134.

Adding to 2212530 its reverse (352122), we get a palindrome (2564652).

It can be divided in two parts, 22125 and 30, that added together give a triangular number (22155 = T210).

The spelling of 2212530 in words is "two million, two hundred twelve thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 73751 147502 221253 368755 442506 737510 1106265 2212530