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12210320030 = 251291194573
BaseRepresentation
bin10110101111100101…
…01011001010011110
31011111221212112012012
423113302223022132
5200001320220110
65335341311222
7611404002446
oct132762531236
934457775165
1012210320030
1151a6453187
122449265512
1311c78c324c
1483b929126
154b6e67905
hex2d7cab29e

12210320030 has 16 divisors (see below), whose sum is σ = 21980510784. Its totient is φ = 4883698080.

The previous prime is 12210319997. The next prime is 12210320039. The reversal of 12210320030 is 3002301221.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12210319987 and 12210320014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210320039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81824 + ... + 176396.

It is an arithmetic number, because the mean of its divisors is an integer number (1373781924).

Almost surely, 212210320030 is an apocalyptic number.

12210320030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12210320030 is a deficient number, since it is larger than the sum of its proper divisors (9770190754).

12210320030 is a wasteful number, since it uses less digits than its factorization.

12210320030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107491.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12210320030 its reverse (3002301221), we get a palindrome (15212621251).

The spelling of 12210320030 in words is "twelve billion, two hundred ten million, three hundred twenty thousand, thirty".

Divisors: 1 2 5 10 12911 25822 64555 94573 129110 189146 472865 945730 1221032003 2442064006 6105160015 12210320030