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2144073 = 3714691
BaseRepresentation
bin1000001011011101001001
311000221010010
420023131021
51022102243
6113542133
724136641
oct10133511
94027103
102144073
111234968
12874949
135a0ba9
143db521
152c5433
hex20b749

2144073 has 4 divisors (see below), whose sum is σ = 2858768. Its totient is φ = 1429380.

The previous prime is 2144063. The next prime is 2144081. The reversal of 2144073 is 3704412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2144073 - 25 = 2144041 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2144033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357343 + ... + 357348.

It is an arithmetic number, because the mean of its divisors is an integer number (714692).

22144073 is an apocalyptic number.

It is an amenable number.

2144073 is a deficient number, since it is larger than the sum of its proper divisors (714695).

2144073 is an equidigital number, since it uses as much as digits as its factorization.

2144073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714694.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2144073 is about 1464.2653448061. The cubic root of 2144073 is about 128.9475780030.

Adding to 2144073 its reverse (3704412), we get a palindrome (5848485).

The spelling of 2144073 in words is "two million, one hundred forty-four thousand, seventy-three".

Divisors: 1 3 714691 2144073