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2531214 = 232720089
BaseRepresentation
bin1001101001111110001110
311202121011200
421221332032
51121444324
6130130330
730341430
oct11517616
94677150
102531214
111479814
12a209a6
136a817a
1449c650
1534eec9
hex269f8e

2531214 has 24 divisors (see below), whose sum is σ = 6268080. Its totient is φ = 723168.

The previous prime is 2531209. The next prime is 2531233. The reversal of 2531214 is 4121352.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9919 + ... + 10170.

It is an arithmetic number, because the mean of its divisors is an integer number (261170).

22531214 is an apocalyptic number.

2531214 is an abundant number, since it is smaller than the sum of its proper divisors (3736866).

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

2531214 is a wasteful number, since it uses less digits than its factorization.

2531214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20104 (or 20101 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2531214 is about 1590.9789439210. The cubic root of 2531214 is about 136.2833983720.

Adding to 2531214 its reverse (4121352), we get a palindrome (6652566).

The spelling of 2531214 in words is "two million, five hundred thirty-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 20089 40178 60267 120534 140623 180801 281246 361602 421869 843738 1265607 2531214