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12120001330 = 252295292577
BaseRepresentation
bin10110100100110100…
…01000101100110010
31011021122220212020011
423102122020230302
5144310210020310
65322353405134
7606226211563
oct132232105462
934248825204
1012120001330
11515a474428
122422b697aa
1311b1c8c228
1482d93816a
154ae07678a
hex2d2688b32

12120001330 has 16 divisors (see below), whose sum is σ = 21911272920. Its totient is φ = 4826829312.

The previous prime is 12120001297. The next prime is 12120001429. The reversal of 12120001330 is 3310002121.

It can be written as a sum of positive squares in 4 ways, for example, as 11976456969 + 143544361 = 109437^2 + 11981^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12120001330.

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, 2643999 + ... + 2648578.

Almost surely, 212120001330 is an apocalyptic number.

12120001330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120001330 is a deficient number, since it is larger than the sum of its proper divisors (9791271590).

12120001330 is a wasteful number, since it uses less digits than its factorization.

12120001330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292813.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12120001330 its reverse (3310002121), we get a palindrome (15430003451).

The spelling of 12120001330 in words is "twelve billion, one hundred twenty million, one thousand, three hundred thirty".

Divisors: 1 2 5 10 229 458 1145 2290 5292577 10585154 26462885 52925770 1212000133 2424000266 6060000665 12120001330