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13122012300 = 2235243740041
BaseRepresentation
bin11000011100010001…
…00000010010001100
31020212111101021212120
430032020200102030
5203333213343200
610010030132540
7643114156425
oct141610402214
936774337776
1013122012300
115624041071
122662651150
131311751827
148c6a4a64c
1551c0039a0
hex30e22048c

13122012300 has 36 divisors (see below), whose sum is σ = 37966356456. Its totient is φ = 3499203200.

The previous prime is 13122012287. The next prime is 13122012341. The reversal of 13122012300 is 321022131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13122012300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21869721 + ... + 21870320.

Almost surely, 213122012300 is an apocalyptic number.

13122012300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122012300 is an abundant number, since it is smaller than the sum of its proper divisors (24844344156).

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

13122012300 is a wasteful number, since it uses less digits than its factorization.

13122012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43740058 (or 43740051 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13122012300 its reverse (321022131), we get a palindrome (13443034431).

The spelling of 13122012300 in words is "thirteen billion, one hundred twenty-two million, twelve thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 43740041 87480082 131220123 174960164 218700205 262440246 437400410 524880492 656100615 874800820 1093501025 1312201230 2187002050 2624402460 3280503075 4374004100 6561006150 13122012300