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12421010300 = 22522910142407
BaseRepresentation
bin10111001000101100…
…11001001101111100
31012001122022200220112
423210112121031330
5200414234312200
65412305205152
7616542563006
oct134426311574
935048280815
1012421010300
1152a4377976
1224a79307b8
13122c45134a
1485b8d1376
154ca6d4535
hex2e459937c

12421010300 has 72 divisors (see below), whose sum is σ = 28159760160. Its totient is φ = 4749472000.

The previous prime is 12421010279. The next prime is 12421010309. The reversal of 12421010300 is 301012421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421010309) 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, 271697 + ... + 314103.

It is an arithmetic number, because the mean of its divisors is an integer number (391107780).

Almost surely, 212421010300 is an apocalyptic number.

12421010300 is a gapful number since it is divisible by the number (10) 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 12421010300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14079880080).

12421010300 is an abundant number, since it is smaller than the sum of its proper divisors (15738749860).

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

12421010300 is a wasteful number, since it uses less digits than its factorization.

12421010300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42551 (or 42544 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12421010300 its reverse (301012421), we get a palindrome (12722022721).

The spelling of 12421010300 in words is "twelve billion, four hundred twenty-one million, ten thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 101 116 145 202 290 404 505 580 725 1010 1450 2020 2525 2900 2929 5050 5858 10100 11716 14645 29290 42407 58580 73225 84814 146450 169628 212035 292900 424070 848140 1060175 1229803 2120350 2459606 4240700 4283107 4919212 6149015 8566214 12298030 17132428 21415535 24596060 30745075 42831070 61490150 85662140 107077675 122980300 124210103 214155350 248420206 428310700 496840412 621050515 1242101030 2484202060 3105252575 6210505150 12421010300