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1213102130 = 251187102199
BaseRepresentation
bin100100001001110…
…0111100000110010
310010112122222021112
41020103213200302
54441023232010
6320212553322
742030124622
oct11023474062
93115588245
101213102130
11572845649
1229a322842
13164431016
14b7180882
1571777a05
hex484e7832

1213102130 has 16 divisors (see below), whose sum is σ = 2185444800. Its totient is φ = 484827312.

The previous prime is 1213102097. The next prime is 1213102157. The reversal of 1213102130 is 312013121.

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 7 ways as a sum of consecutive naturals, for example, 39230 + ... + 62969.

It is an arithmetic number, because the mean of its divisors is an integer number (136590300).

Almost surely, 21213102130 is an apocalyptic number.

1213102130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213102130 is a deficient number, since it is larger than the sum of its proper divisors (972342670).

1213102130 is a wasteful number, since it uses less digits than its factorization.

1213102130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103393.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1213102130 is about 34829.6157027321. The cubic root of 1213102130 is about 1066.5121033639.

Adding to 1213102130 its reverse (312013121), we get a palindrome (1525115251).

The spelling of 1213102130 in words is "one billion, two hundred thirteen million, one hundred two thousand, one hundred thirty".

Divisors: 1 2 5 10 1187 2374 5935 11870 102199 204398 510995 1021990 121310213 242620426 606551065 1213102130