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2144214 = 232139857
BaseRepresentation
bin1000001011011111010110
311000221022100
420023133112
51022103324
6113542530
724140232
oct10133726
94027270
102144214
111234a86
12874a46
135a0c87
143db5c2
152c54c9
hex20b7d6

2144214 has 24 divisors (see below), whose sum is σ = 4684680. Its totient is φ = 708768.

The previous prime is 2144213. The next prime is 2144243. The reversal of 2144214 is 4124412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2074 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (195195).

22144214 is an apocalyptic number.

2144214 is an abundant number, since it is smaller than the sum of its proper divisors (2540466).

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

2144214 is a wasteful number, since it uses less digits than its factorization.

2144214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 1001 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 2144214 is about 1464.3134910257. The cubic root of 2144214 is about 128.9504045874.

Adding to 2144214 its reverse (4124412), we get a palindrome (6268626).

The spelling of 2144214 in words is "two million, one hundred forty-four thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 139 278 417 834 857 1251 1714 2502 2571 5142 7713 15426 119123 238246 357369 714738 1072107 2144214