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4020193 = 231031697
BaseRepresentation
bin1111010101011111100001
321120020200001
433111133201
52012121233
6222100001
746112452
oct17253741
97506601
104020193
1122a6481
12141a601
13aa9b18
14769129
1554627d
hex3d57e1

4020193 has 8 divisors (see below), whose sum is σ = 4238208. Its totient is φ = 3805824.

The previous prime is 4020167. The next prime is 4020197. The reversal of 4020193 is 3910204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4020193 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 4020193.

It is not an unprimeable number, because it can be changed into a prime (4020197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1521 + ... + 3217.

It is an arithmetic number, because the mean of its divisors is an integer number (529776).

Almost surely, 24020193 is an apocalyptic number.

It is an amenable number.

4020193 is a deficient number, since it is larger than the sum of its proper divisors (218015).

4020193 is a wasteful number, since it uses less digits than its factorization.

4020193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 4020193 is about 2005.0418948241. The cubic root of 4020193 is about 159.0067768692.

Adding to 4020193 its reverse (3910204), we get a palindrome (7930397).

The spelling of 4020193 in words is "four million, twenty thousand, one hundred ninety-three".

Divisors: 1 23 103 1697 2369 39031 174791 4020193