Search a number
-
+
2220131442 = 232358727407
BaseRepresentation
bin1000010001010100…
…1000010001110010
312201201120100210110
42010111020101302
514021323201232
61004145042150
7106005543264
oct20425102162
95651510713
102220131442
11a3a22a681
1251b626356
13294c5c859
14170bdbb34
15ced96acc
hex84548472

2220131442 has 32 divisors (see below), whose sum is σ = 4641380352. Its totient is φ = 706636304.

The previous prime is 2220131429. The next prime is 2220131471. The reversal of 2220131442 is 2441310222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67303 + ... + 94709.

It is an arithmetic number, because the mean of its divisors is an integer number (145043136).

Almost surely, 22220131442 is an apocalyptic number.

2220131442 is an abundant number, since it is smaller than the sum of its proper divisors (2421248910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220131442 is a wasteful number, since it uses less digits than its factorization.

2220131442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28022.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2220131442 is about 47118.2707874557. The cubic root of 2220131442 is about 1304.5464955809.

Adding to 2220131442 its reverse (2441310222), we get a palindrome (4661441664).

The spelling of 2220131442 in words is "two billion, two hundred twenty million, one hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 587 1174 1761 3522 13501 27002 27407 40503 54814 81006 82221 164442 630361 1260722 1891083 3782166 16087909 32175818 48263727 96527454 370021907 740043814 1110065721 2220131442