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12203031330 = 2325719369891
BaseRepresentation
bin10110101110101101…
…10111101100100010
31011111110011012222100
423113112313230202
5144442434000310
65334521151230
7611255024550
oct132726675442
934443135870
1012203031330
1151a2325066
12244692b516
1311c62407c9
1483a98cbd0
154b64c7ec0
hex2d75b7b22

12203031330 has 48 divisors (see below), whose sum is σ = 36260437824. Its totient is φ = 2789264160.

The previous prime is 12203031319. The next prime is 12203031331. The reversal of 12203031330 is 3313030221.

12203031330 is a `hidden beast` number, since 12 + 20 + 303 + 1 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12203031331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9684316 + ... + 9685575.

It is an arithmetic number, because the mean of its divisors is an integer number (755425788).

Almost surely, 212203031330 is an apocalyptic number.

12203031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12203031330 is an abundant number, since it is smaller than the sum of its proper divisors (24057406494).

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

12203031330 is a wasteful number, since it uses less digits than its factorization.

12203031330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19369911 (or 19369908 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 12203031330 its reverse (3313030221), we get a palindrome (15516061551).

The spelling of 12203031330 in words is "twelve billion, two hundred three million, thirty-one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 19369891 38739782 58109673 96849455 116219346 135589237 174329019 193698910 271178474 290548365 348658038 406767711 581096730 677946185 813535422 871645095 1220303133 1355892370 1743290190 2033838555 2440606266 4067677110 6101515665 12203031330