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1223130234 = 23316575969
BaseRepresentation
bin100100011100111…
…0111110001111010
310011020112110020210
41020321313301322
510001110131414
6321211531550
742211302234
oct11071676172
93136473223
101223130234
11578474937
122a1759bb6
13166532601
14b8631254
15725a8e59
hex48e77c7a

1223130234 has 16 divisors (see below), whose sum is σ = 2525172480. Its totient is φ = 394558080.

The previous prime is 1223130221. The next prime is 1223130281. The reversal of 1223130234 is 4320313221.

It is a self number, because there is not a number n which added to its sum of digits gives 1223130234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3287799 + ... + 3288170.

It is an arithmetic number, because the mean of its divisors is an integer number (157823280).

Almost surely, 21223130234 is an apocalyptic number.

1223130234 is an abundant number, since it is smaller than the sum of its proper divisors (1302042246).

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

1223130234 is a wasteful number, since it uses less digits than its factorization.

1223130234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6576005.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1223130234 is about 34973.2788568644. The cubic root of 1223130234 is about 1069.4428152715.

Adding to 1223130234 its reverse (4320313221), we get a palindrome (5543443455).

The spelling of 1223130234 in words is "one billion, two hundred twenty-three million, one hundred thirty thousand, two hundred thirty-four".

Divisors: 1 2 3 6 31 62 93 186 6575969 13151938 19727907 39455814 203855039 407710078 611565117 1223130234