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2223143142 = 23111710319237
BaseRepresentation
bin1000010010000010…
…0111100011100110
312201221020101001220
42010200213203212
514023111040032
61004333401210
7106043255613
oct20440474346
95657211056
102223143142
11a409a7390
12520639206
1329577561c
1417138350a
15d028e12c
hex848278e6

2223143142 has 64 divisors (see below), whose sum is σ = 5185949184. Its totient is φ = 627863040.

The previous prime is 2223143101. The next prime is 2223143213. The reversal of 2223143142 is 2413413222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105948 + ... + 125184.

It is an arithmetic number, because the mean of its divisors is an integer number (81030456).

Almost surely, 22223143142 is an apocalyptic number.

2223143142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2223143142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592974592).

2223143142 is an abundant number, since it is smaller than the sum of its proper divisors (2962806042).

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

2223143142 is a wasteful number, since it uses less digits than its factorization.

2223143142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19373.

The product of its digits is 2304, while the sum is 24.

The square root of 2223143142 is about 47150.2188966287. The cubic root of 2223143142 is about 1305.1361194460.

Adding to 2223143142 its reverse (2413413222), we get a palindrome (4636556364).

It can be divided in two parts, 222314 and 3142, that added together give a triangular number (225456 = T671).

The spelling of 2223143142 in words is "two billion, two hundred twenty-three million, one hundred forty-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 103 187 206 309 374 561 618 1122 1133 1751 2266 3399 3502 5253 6798 10506 19237 19261 38474 38522 57711 57783 115422 115566 211607 327029 423214 634821 654058 981087 1269642 1962174 1981411 3597319 3962822 5944233 7194638 10791957 11888466 21583914 21795521 33683987 43591042 65386563 67367974 101051961 130773126 202103922 370523857 741047714 1111571571 2223143142