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12124430430 = 2357173396199
BaseRepresentation
bin10110100101010110…
…00010000001011110
31011021222020212210220
423102223002001132
5144312323233210
65323032342210
7606311646450
oct132253020136
934258225726
1012124430430
115161a1a042
122424544966
1311b2b801b8
1483036c2d0
154ae64dc70
hex2d2ac205e

12124430430 has 64 divisors (see below), whose sum is σ = 35211801600. Its totient is φ = 2608280064.

The previous prime is 12124430401. The next prime is 12124430453. The reversal of 12124430430 is 3403442121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12124430430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1694530 + ... + 1701669.

It is an arithmetic number, because the mean of its divisors is an integer number (550184400).

Almost surely, 212124430430 is an apocalyptic number.

12124430430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12124430430 is an abundant number, since it is smaller than the sum of its proper divisors (23087371170).

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

12124430430 is a wasteful number, since it uses less digits than its factorization.

12124430430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396233.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12124430430 its reverse (3403442121), we get a palindrome (15527872551).

The spelling of 12124430430 in words is "twelve billion, one hundred twenty-four million, four hundred thirty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 17 21 30 34 35 42 51 70 85 102 105 119 170 210 238 255 357 510 595 714 1190 1785 3570 3396199 6792398 10188597 16980995 20377194 23773393 33961990 47546786 50942985 57735383 71320179 101885970 115470766 118866965 142640358 173206149 237733930 288676915 346412298 356600895 404147681 577353830 713201790 808295362 866030745 1212443043 1732061490 2020738405 2424886086 4041476810 6062215215 12124430430