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4164943 = 31134353
BaseRepresentation
bin1111111000110101001111
321211121020011
433320311033
52031234233
6225134051
750254456
oct17706517
97747204
104164943
112395202
12148a327
13b2a983
147a5b9d
155740cd
hex3f8d4f

4164943 has 4 divisors (see below), whose sum is σ = 4299328. Its totient is φ = 4030560.

The previous prime is 4164917. The next prime is 4164947. The reversal of 4164943 is 3494614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3494614 = 21747307.

It is a cyclic number.

It is not a de Polignac number, because 4164943 - 213 = 4156751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 134353 = 4164943 / (4 + 1 + 6 + 4 + 9 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4164947) 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, 67146 + ... + 67207.

It is an arithmetic number, because the mean of its divisors is an integer number (1074832).

Almost surely, 24164943 is an apocalyptic number.

4164943 is a deficient number, since it is larger than the sum of its proper divisors (134385).

4164943 is a wasteful number, since it uses less digits than its factorization.

4164943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134384.

The product of its digits is 10368, while the sum is 31.

The square root of 4164943 is about 2040.8191982633. The cubic root of 4164943 is about 160.8927052823.

The spelling of 4164943 in words is "four million, one hundred sixty-four thousand, nine hundred forty-three".

Divisors: 1 31 134353 4164943