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21012014300 = 2252533964531
BaseRepresentation
bin10011100100011010…
…011110010011011100
32000020100210220212212
4103210122132103130
5321013033424200
613353000215552
71342461113624
oct234432362334
960210726785
1021012014300
118a02809382
1240a4a6a5b8
131c9b260474
14103487d884
1582ea22035
hex4e469e4dc

21012014300 has 36 divisors (see below), whose sum is σ = 46456385976. Its totient is φ = 8246222400.

The previous prime is 21012014209. The next prime is 21012014333. The reversal of 21012014300 is 341021012.

It is a congruent number.

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, 1976966 + ... + 1987565.

It is an arithmetic number, because the mean of its divisors is an integer number (1290455166).

Almost surely, 221012014300 is an apocalyptic number.

21012014300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21012014300 is an abundant number, since it is smaller than the sum of its proper divisors (25444371676).

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

21012014300 is a wasteful number, since it uses less digits than its factorization.

21012014300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964598 (or 3964591 counting only the distinct ones).

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

Adding to 21012014300 its reverse (341021012), we get a palindrome (21353035312).

The spelling of 21012014300 in words is "twenty-one billion, twelve million, fourteen thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 53 100 106 212 265 530 1060 1325 2650 5300 3964531 7929062 15858124 19822655 39645310 79290620 99113275 198226550 210120143 396453100 420240286 840480572 1050600715 2101201430 4202402860 5253003575 10506007150 21012014300