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12125037700 = 2252994112197
BaseRepresentation
bin10110100101011010…
…10110010010000100
31011022000101201211101
423102231112102010
5144313002201300
65323053345444
7606320056066
oct132255262204
934260351741
1012125037700
1151622a4316
122424798284
1311b3033729
14830489736
154ae71db6a
hex2d2b56484

12125037700 has 36 divisors (see below), whose sum is σ = 26316135972. Its totient is φ = 4849129600.

The previous prime is 12125037697. The next prime is 12125037761. The reversal of 12125037700 is 773052121.

It can be written as a sum of positive squares in 6 ways, for example, as 2009908224 + 10115129476 = 44832^2 + 100574^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 988002 + ... + 1000198.

It is an arithmetic number, because the mean of its divisors is an integer number (731003777).

Almost surely, 212125037700 is an apocalyptic number.

12125037700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12125037700 is an abundant number, since it is smaller than the sum of its proper divisors (14191098272).

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

12125037700 is a wasteful number, since it uses less digits than its factorization.

12125037700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22152 (or 22145 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

Adding to 12125037700 its reverse (773052121), we get a palindrome (12898089821).

The spelling of 12125037700 in words is "twelve billion, one hundred twenty-five million, thirty-seven thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 9941 12197 19882 24394 39764 48788 49705 60985 99410 121970 198820 243940 248525 304925 497050 609850 994100 1219700 121250377 242500754 485001508 606251885 1212503770 2425007540 3031259425 6062518850 12125037700