Search a number
-
+
2223818139 = 33129381611
BaseRepresentation
bin1000010010001100…
…1100010110011011
312201222111122222210
42010203030112123
514023244140024
61004400050203
7106052066544
oct20443142633
95658448883
102223818139
11a41318534
12520903963
1329595092a
141714bb4cb
15d0374129
hex848cc59b

2223818139 has 16 divisors (see below), whose sum is σ = 3071222784. Its totient is φ = 1429807200.

The previous prime is 2223818137. The next prime is 2223818153. The reversal of 2223818139 is 9318183222.

It is not a de Polignac number, because 2223818139 - 21 = 2223818137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2223818097 and 2223818106.

It is not an unprimeable number, because it can be changed into a prime (2223818131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13557 + ... + 68054.

It is an arithmetic number, because the mean of its divisors is an integer number (191951424).

Almost surely, 22223818139 is an apocalyptic number.

2223818139 is a deficient number, since it is larger than the sum of its proper divisors (847404645).

2223818139 is a wasteful number, since it uses less digits than its factorization.

2223818139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81938.

The product of its digits is 41472, while the sum is 39.

The square root of 2223818139 is about 47157.3762947007. The cubic root of 2223818139 is about 1305.2681957847.

The spelling of 2223818139 in words is "two billion, two hundred twenty-three million, eight hundred eighteen thousand, one hundred thirty-nine".

Divisors: 1 3 31 93 293 879 9083 27249 81611 244833 2529941 7589823 23912023 71736069 741272713 2223818139