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3800143 = 22317041
BaseRepresentation
bin1110011111110001001111
321011001211001
432133301033
51433101033
6213241131
744205064
oct16376117
97131731
103800143
112166116
1213331a7
13a30909
1470cc6b
15500e7d
hex39fc4f

3800143 has 4 divisors (see below), whose sum is σ = 3817408. Its totient is φ = 3782880.

The previous prime is 3800119. The next prime is 3800149. The reversal of 3800143 is 3410083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3410083 = 6155903.

It is a cyclic number.

It is not a de Polignac number, because 3800143 - 221 = 1702991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3800143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3800149) 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, 8298 + ... + 8743.

It is an arithmetic number, because the mean of its divisors is an integer number (954352).

Almost surely, 23800143 is an apocalyptic number.

3800143 is a deficient number, since it is larger than the sum of its proper divisors (17265).

3800143 is a wasteful number, since it uses less digits than its factorization.

3800143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17264.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3800143 is about 1949.3955473428. The cubic root of 3800143 is about 156.0510325039.

The spelling of 3800143 in words is "three million, eight hundred thousand, one hundred forty-three".

Divisors: 1 223 17041 3800143