Search a number
-
+
1999422222 = 237163292057
BaseRepresentation
bin111011100101100…
…1100001100001110
312011100021011122220
41313023030030032
513043323002342
6530222320210
7100355544210
oct16713141416
95140234586
101999422222
11936692566
12479729066
1325b304395
1414d7885b0
15ba7eb5ec
hex772cc30e

1999422222 has 32 divisors (see below), whose sum is σ = 4598161152. Its totient is φ = 567756864.

The previous prime is 1999422211. The next prime is 1999422233. The reversal of 1999422222 is 2222249991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1999422211) and next prime (1999422233).

It is a Harshad number since it is a multiple of its sum of digits (42).

1999422222 is a modest number, since divided by 22222 gives 19994 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139183 + ... + 152874.

It is an arithmetic number, because the mean of its divisors is an integer number (143692536).

Almost surely, 21999422222 is an apocalyptic number.

1999422222 is an abundant number, since it is smaller than the sum of its proper divisors (2598738930).

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

1999422222 is a wasteful number, since it uses less digits than its factorization.

1999422222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292232.

The product of its digits is 93312, while the sum is 42.

The square root of 1999422222 is about 44714.8993289709. The cubic root of 1999422222 is about 1259.7997124324.

The spelling of 1999422222 in words is "one billion, nine hundred ninety-nine million, four hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 14 21 42 163 326 489 978 1141 2282 3423 6846 292057 584114 876171 1752342 2044399 4088798 6133197 12266394 47605291 95210582 142815873 285631746 333237037 666474074 999711111 1999422222