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212412001300 = 22523789645041
BaseRepresentation
bin1100010111010010111…
…1011110110000010100
3202022021100122200101021
43011310233132300110
511440004433020200
6241325234210524
721226524135502
oct3056457366024
9668240580337
10212412001300
11820a1045514
1235200423a44
1317051937a45
14a3d0709672
1557d2e7941a
hex3174bdec14

212412001300 has 72 divisors (see below), whose sum is σ = 478711469880. Its totient is φ = 81739468800.

The previous prime is 212412001297. The next prime is 212412001303. The reversal of 212412001300 is 3100214212.

It is an interprime number because it is at equal distance from previous prime (212412001297) and next prime (212412001303).

It can be written as a sum of positive squares in 12 ways, for example, as 5992617744 + 206419383556 = 77412^2 + 454334^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212412001303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6780 + ... + 651820.

It is an arithmetic number, because the mean of its divisors is an integer number (6648770415).

Almost surely, 2212412001300 is an apocalyptic number.

212412001300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212412001300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239355734940).

212412001300 is an abundant number, since it is smaller than the sum of its proper divisors (266299468580).

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

212412001300 is a wasteful number, since it uses less digits than its factorization.

212412001300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645181 (or 645174 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212412001300 its reverse (3100214212), we get a palindrome (215512215512).

The spelling of 212412001300 in words is "two hundred twelve billion, four hundred twelve million, one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 89 100 148 178 185 356 370 445 740 890 925 1780 1850 2225 3293 3700 4450 6586 8900 13172 16465 32930 65860 82325 164650 329300 645041 1290082 2580164 3225205 6450410 12900820 16126025 23866517 32252050 47733034 57408649 64504100 95466068 114817298 119332585 229634596 238665170 287043245 477330340 574086490 596662925 1148172980 1193325850 1435216225 2124120013 2386651700 2870432450 4248240026 5740864900 8496480052 10620600065 21241200130 42482400260 53103000325 106206000650 212412001300