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12207621305 = 5111733134099
BaseRepresentation
bin10110101111010000…
…11000010010111001
31011111202210102020102
423113220120102321
5200000122340210
65335203405145
7611342032445
oct132750302271
934452712212
1012207621305
1151a497a630
1224483837b5
1311c7189a79
1483b425825
154b6ad2ea5
hex2d7a184b9

12207621305 has 32 divisors (see below), whose sum is σ = 16128547200. Its totient is φ = 8796602880.

The previous prime is 12207621299. The next prime is 12207621313. The reversal of 12207621305 is 50312670221.

It is a happy number.

12207621305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12207621305 - 26 = 12207621241 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 2976146 + ... + 2980244.

It is an arithmetic number, because the mean of its divisors is an integer number (504017100).

Almost surely, 212207621305 is an apocalyptic number.

It is an amenable number.

12207621305 is a deficient number, since it is larger than the sum of its proper divisors (3920925895).

12207621305 is a wasteful number, since it uses less digits than its factorization.

12207621305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601.

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 12207621305 in words is "twelve billion, two hundred seven million, six hundred twenty-one thousand, three hundred five".

Divisors: 1 5 11 55 173 313 865 1565 1903 3443 4099 9515 17215 20495 45089 54149 225445 270745 595639 709127 1282987 2978195 3545635 6414935 7800397 14112857 39001985 70564285 221956751 1109783755 2441524261 12207621305