Search a number
-
+
2320240220 = 2251374991697
BaseRepresentation
bin1000101001001100…
…0000111001011100
312222200221102012222
42022103000321130
514222440141340
61022122444512
7111332500514
oct21223007134
95880842188
102320240220
11a90795901
12549063738
132ac910a0c
1418021a844
15d8a6d8b5
hex8a4c0e5c

2320240220 has 48 divisors (see below), whose sum is σ = 4920804000. Its totient is φ = 918933504.

The previous prime is 2320240177. The next prime is 2320240243. The reversal of 2320240220 is 220420232.

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 15 ways as a sum of consecutive naturals, for example, 1366412 + ... + 1368108.

It is an arithmetic number, because the mean of its divisors is an integer number (102516750).

Almost surely, 22320240220 is an apocalyptic number.

2320240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320240220 is an abundant number, since it is smaller than the sum of its proper divisors (2600563780).

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

2320240220 is a wasteful number, since it uses less digits than its factorization.

2320240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342 (or 2340 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2320240220 is about 48168.8718987688. The cubic root of 2320240220 is about 1323.8668788798.

Adding to 2320240220 its reverse (220420232), we get a palindrome (2540660452).

The spelling of 2320240220 in words is "two billion, three hundred twenty million, two hundred forty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 137 274 499 548 685 998 1370 1697 1996 2495 2740 3394 4990 6788 8485 9980 16970 33940 68363 136726 232489 273452 341815 464978 683630 846803 929956 1162445 1367260 1693606 2324890 3387212 4234015 4649780 8468030 16936060 116012011 232024022 464048044 580060055 1160120110 2320240220