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12213013200 = 2435210177511
BaseRepresentation
bin10110101111111001…
…11100101011010000
31011112010221100112020
423113330330223100
5200003012410300
65335515131440
7611435620323
oct132774745320
934463840466
1012213013200
1151a7a22643
12244a143b80
1311c832703b
1483c02a7ba
154b72ea8a0
hex2d7f3cad0

12213013200 has 60 divisors (see below), whose sum is σ = 39122356128. Its totient is φ = 3256803200.

The previous prime is 12213013159. The next prime is 12213013207. The reversal of 12213013200 is 231031221.

It is a tau number, because it is divible by the number of its divisors (60).

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 12213013200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213013207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5087556 + ... + 5089955.

Almost surely, 212213013200 is an apocalyptic number.

12213013200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213013200 is an abundant number, since it is smaller than the sum of its proper divisors (26909342928).

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

12213013200 is a wasteful number, since it uses less digits than its factorization.

12213013200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177532 (or 10177521 counting only the distinct ones).

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

Adding to 12213013200 its reverse (231031221), we get a palindrome (12444044421).

The spelling of 12213013200 in words is "twelve billion, two hundred thirteen million, thirteen thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 10177511 20355022 30532533 40710044 50887555 61065066 81420088 101775110 122130132 152662665 162840176 203550220 244260264 254437775 305325330 407100440 488520528 508875550 610650660 763313325 814200880 1017751100 1221301320 1526626650 2035502200 2442602640 3053253300 4071004400 6106506600 12213013200