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12443304100 = 2252767316217
BaseRepresentation
bin10111001011010110…
…11100000010100100
31012010012021100020211
423211223130002210
5200440441212400
65414423105204
7620233224343
oct134553340244
935105240224
1012443304100
115305a145a7
1224b32a2204
131233c58846
14860855b5a
154cc639dba
hex2e5adc0a4

12443304100 has 36 divisors (see below), whose sum is σ = 27007154244. Its totient is φ = 4976366080.

The previous prime is 12443304091. The next prime is 12443304109. The reversal of 12443304100 is 140334421.

It is an interprime number because it is at equal distance from previous prime (12443304091) and next prime (12443304109).

It can be written as a sum of positive squares in 6 ways, for example, as 96983104 + 12346320996 = 9848^2 + 111114^2 .

It is not an unprimeable number, because it can be changed into a prime (12443304109) 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, 759192 + ... + 775408.

It is an arithmetic number, because the mean of its divisors is an integer number (750198729).

Almost surely, 212443304100 is an apocalyptic number.

12443304100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12443304100 is an abundant number, since it is smaller than the sum of its proper divisors (14563850144).

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

12443304100 is a wasteful number, since it uses less digits than its factorization.

12443304100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23904 (or 23897 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12443304100 its reverse (140334421), we get a palindrome (12583638521).

The spelling of 12443304100 in words is "twelve billion, four hundred forty-three million, three hundred four thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 7673 15346 16217 30692 32434 38365 64868 76730 81085 153460 162170 191825 324340 383650 405425 767300 810850 1621700 124433041 248866082 497732164 622165205 1244330410 2488660820 3110826025 6221652050 12443304100