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4191069 = 31397023
BaseRepresentation
bin1111111111001101011101
321212221001210
433333031131
52033103234
6225455033
750423601
oct17771535
97787053
104191069
1124028a3
1214a1479
13b3982c
147b1501
1557bbe9
hex3ff35d

4191069 has 4 divisors (see below), whose sum is σ = 5588096. Its totient is φ = 2794044.

The previous prime is 4191067. The next prime is 4191071. The reversal of 4191069 is 9601914.

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 an interprime number because it is at equal distance from previous prime (4191067) and next prime (4191071).

It is not a de Polignac number, because 4191069 - 21 = 4191067 is a prime.

It is a super-2 number, since 2×41910692 = 35130118725522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4191067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698509 + ... + 698514.

It is an arithmetic number, because the mean of its divisors is an integer number (1397024).

Almost surely, 24191069 is an apocalyptic number.

It is an amenable number.

4191069 is a deficient number, since it is larger than the sum of its proper divisors (1397027).

4191069 is a wasteful number, since it uses less digits than its factorization.

4191069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397026.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 4191069 is about 2047.2100527303. The cubic root of 4191069 is about 161.2284220871.

The spelling of 4191069 in words is "four million, one hundred ninety-one thousand, sixty-nine".

Divisors: 1 3 1397023 4191069