Search a number
-
+
4206247 = 29145043
BaseRepresentation
bin10000000010111010100111
321220200212221
4100002322213
52034044442
6230053211
750516053
oct20027247
97820787
104206247
112413241
1214aa207
13b43706
147b6c63
15581467
hex402ea7

4206247 has 4 divisors (see below), whose sum is σ = 4351320. Its totient is φ = 4061176.

The previous prime is 4206233. The next prime is 4206281. The reversal of 4206247 is 7426024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4206247 - 27 = 4206119 is a prime.

It is a d-powerful number, because it can be written as 43 + 221 + 0 + 65 + 221 + 46 + 7 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4206227) 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, 72493 + ... + 72550.

It is an arithmetic number, because the mean of its divisors is an integer number (1087830).

Almost surely, 24206247 is an apocalyptic number.

4206247 is a deficient number, since it is larger than the sum of its proper divisors (145073).

4206247 is a wasteful number, since it uses less digits than its factorization.

4206247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145072.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 4206247 is about 2050.9136988182. The cubic root of 4206247 is about 161.4228177432.

The spelling of 4206247 in words is "four million, two hundred six thousand, two hundred forty-seven".

Divisors: 1 29 145043 4206247