Search a number
-
+
4207930849 = 12233440663
BaseRepresentation
bin1111101011001111…
…1110110111100001
3101212020222000221201
43322303332313201
532104212241344
61533314321201
7206163551653
oct37263766741
911766860851
104207930849
11186a2a3801
12995289201
13520a24815
142bcbdc6d3
151996494d4
hexfacfede1

4207930849 has 4 divisors (see below), whose sum is σ = 4211372736. Its totient is φ = 4204488964.

The previous prime is 4207930807. The next prime is 4207930861. The reversal of 4207930849 is 9480397024.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 4207930849 - 211 = 4207928801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4207930799 and 4207930808.

It is not an unprimeable number, because it can be changed into a prime (4207930879) 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, 1719109 + ... + 1721554.

It is an arithmetic number, because the mean of its divisors is an integer number (1052843184).

Almost surely, 24207930849 is an apocalyptic number.

It is an amenable number.

4207930849 is a deficient number, since it is larger than the sum of its proper divisors (3441887).

4207930849 is a wasteful number, since it uses less digits than its factorization.

4207930849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441886.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 4207930849 is about 64868.5659545515. The cubic root of 4207930849 is about 1614.4435518399.

The spelling of 4207930849 in words is "four billion, two hundred seven million, nine hundred thirty thousand, eight hundred forty-nine".

Divisors: 1 1223 3440663 4207930849