Search a number
-
+
1223130232 = 231313593251
BaseRepresentation
bin100100011100111…
…0111110001111000
310011020112110020201
41020321313301320
510001110131412
6321211531544
742211302232
oct11071676170
93136473221
101223130232
11578474935
122a1759bb4
131665325cc
14b8631252
15725a8e57
hex48e77c78

1223130232 has 32 divisors (see below), whose sum is σ = 2318025600. Its totient is φ = 605020000.

The previous prime is 1223130221. The next prime is 1223130281. The reversal of 1223130232 is 2320313221.

It is a congruent number.

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, 374607 + ... + 377857.

It is an arithmetic number, because the mean of its divisors is an integer number (72438300).

Almost surely, 21223130232 is an apocalyptic number.

It is an amenable number.

1223130232 is a deficient number, since it is larger than the sum of its proper divisors (1094895368).

1223130232 is a wasteful number, since it uses less digits than its factorization.

1223130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747 (or 3743 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223130232 is about 34973.2788282712. The cubic root of 1223130232 is about 1069.4428146886.

Adding to 1223130232 its reverse (2320313221), we get a palindrome (3543443453).

The spelling of 1223130232 in words is "one billion, two hundred twenty-three million, one hundred thirty thousand, two hundred thirty-two".

Divisors: 1 2 4 8 131 262 359 524 718 1048 1436 2872 3251 6502 13004 26008 47029 94058 188116 376232 425881 851762 1167109 1703524 2334218 3407048 4668436 9336872 152891279 305782558 611565116 1223130232