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12102250464 = 253242021703
BaseRepresentation
bin10110100010101100…
…11010111111100000
31011020102112000121200
423101112122333200
5144241134003324
65320521121200
7605622301023
oct132126327740
934212460550
1012102250464
11515044a997
122419029200
1311ab3b5765
1482b4371ba
154ac71bec9
hex2d159afe0

12102250464 has 36 divisors (see below), whose sum is σ = 34415775576. Its totient is φ = 4034083392.

The previous prime is 12102250463. The next prime is 12102250519. The reversal of 12102250464 is 46405220121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102250463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21010564 + ... + 21011139.

It is an arithmetic number, because the mean of its divisors is an integer number (955993766).

Almost surely, 212102250464 is an apocalyptic number.

It is an amenable number.

12102250464 is an abundant number, since it is smaller than the sum of its proper divisors (22313525112).

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

12102250464 is a wasteful number, since it uses less digits than its factorization.

12102250464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42021719 (or 42021708 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12102250464 its reverse (46405220121), we get a palindrome (58507470585).

The spelling of 12102250464 in words is "twelve billion, one hundred two million, two hundred fifty thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 42021703 84043406 126065109 168086812 252130218 336173624 378195327 504260436 672347248 756390654 1008520872 1344694496 1512781308 2017041744 3025562616 4034083488 6051125232 12102250464