Search a number
-
+
1303230220 = 225619105269
BaseRepresentation
bin100110110101101…
…1011011100001100
310100211020221202221
41031223123130030
510132111331340
6333152425124
744203163005
oct11553333414
93324227687
101303230220
11609704176
123045481a4
13179cc9356
14c51221ac
157962c44a
hex4dadb70c

1303230220 has 24 divisors (see below), whose sum is σ = 2741230800. Its totient is φ = 520444992.

The previous prime is 1303230191. The next prime is 1303230259. The reversal of 1303230220 is 220323031.

It is a junction number, because it is equal to n+sod(n) for n = 1303230194 and 1303230203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40255 + ... + 65014.

It is an arithmetic number, because the mean of its divisors is an integer number (114217950).

Almost surely, 21303230220 is an apocalyptic number.

1303230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303230220 is an abundant number, since it is smaller than the sum of its proper divisors (1438000580).

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

1303230220 is a wasteful number, since it uses less digits than its factorization.

1303230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105897 (or 105895 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1303230220 is about 36100.2800543154. The cubic root of 1303230220 is about 1092.2960941271.

Adding to 1303230220 its reverse (220323031), we get a palindrome (1523553251).

The spelling of 1303230220 in words is "one billion, three hundred three million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 619 1238 2476 3095 6190 12380 105269 210538 421076 526345 1052690 2105380 65161511 130323022 260646044 325807555 651615110 1303230220