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4156193 = 19229397
BaseRepresentation
bin1111110110101100100001
321211011020002
433312230201
52030444233
6225025345
750220116
oct17665441
97734202
104156193
112389678
121485255
13b269b2
147a290d
155716e8
hex3f6b21

4156193 has 12 divisors (see below), whose sum is σ = 4549140. Its totient is φ = 3792096.

The previous prime is 4156183. The next prime is 4156199. The reversal of 4156193 is 3916514.

It can be written as a sum of positive squares in 2 ways, for example, as 2486929 + 1669264 = 1577^2 + 1292^2 .

It is not a de Polignac number, because 4156193 - 210 = 4155169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10271 + ... + 10667.

It is an arithmetic number, because the mean of its divisors is an integer number (379095).

Almost surely, 24156193 is an apocalyptic number.

It is an amenable number.

4156193 is a deficient number, since it is larger than the sum of its proper divisors (392947).

4156193 is a wasteful number, since it uses less digits than its factorization.

4156193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 445 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 4156193 is about 2038.6743241626. The cubic root of 4156193 is about 160.7799547837.

The spelling of 4156193 in words is "four million, one hundred fifty-six thousand, one hundred ninety-three".

Divisors: 1 19 29 361 397 551 7543 10469 11513 143317 218747 4156193