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4193261 = 31313397
BaseRepresentation
bin1111111111101111101101
321220001001222
433333233231
52033141021
6225513125
750433152
oct17775755
97801058
104193261
112404506
1214a27a5
13b3a827
147b2229
1557c6ab
hex3ffbed

4193261 has 4 divisors (see below), whose sum is σ = 4206972. Its totient is φ = 4179552.

The previous prime is 4193251. The next prime is 4193263. The reversal of 4193261 is 1623914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1623914 = 2811957.

It can be written as a sum of positive squares in 2 ways, for example, as 72361 + 4120900 = 269^2 + 2030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4193261 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 4193261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4193263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6386 + ... + 7011.

It is an arithmetic number, because the mean of its divisors is an integer number (1051743).

Almost surely, 24193261 is an apocalyptic number.

It is an amenable number.

4193261 is a deficient number, since it is larger than the sum of its proper divisors (13711).

4193261 is a wasteful number, since it uses less digits than its factorization.

4193261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13710.

The product of its digits is 1296, while the sum is 26.

The square root of 4193261 is about 2047.7453454959. The cubic root of 4193261 is about 161.2565255857.

The spelling of 4193261 in words is "four million, one hundred ninety-three thousand, two hundred sixty-one".

Divisors: 1 313 13397 4193261