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21213002000130 = 2354316444187597
BaseRepresentation
bin1001101001011000010010…
…11100101110011100000010
32210002221110120201122202120
410310230021130232130002
510240023212003001010
6113041041340425110
74316405651632563
oct464541134563402
983087416648676
1021213002000130
116839424675286
12246727b548196
13bab4ba4c0935
14534a014b216a
1526bbeb26ae70
hex134b0972e702

21213002000130 has 32 divisors (see below), whose sum is σ = 52095186310464. Its totient is φ = 5525247032256.

The previous prime is 21213002000123. The next prime is 21213002000137. The reversal of 21213002000130 is 3100020031212.

It is an interprime number because it is at equal distance from previous prime (21213002000123) and next prime (21213002000137).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (21213002000137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8222092509 + ... + 8222095088.

It is an arithmetic number, because the mean of its divisors is an integer number (1627974572202).

Almost surely, 221213002000130 is an apocalyptic number.

21213002000130 is an abundant number, since it is smaller than the sum of its proper divisors (30882184310334).

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

21213002000130 is a wasteful number, since it uses less digits than its factorization.

21213002000130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16444187650.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21213002000130 its reverse (3100020031212), we get a palindrome (24313022031342).

The spelling of 21213002000130 in words is "twenty-one trillion, two hundred thirteen billion, two million, one hundred thirty", and thus it is an aban number.

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 16444187597 32888375194 49332562791 82220937985 98665125582 164441875970 246662813955 493325627910 707100066671 1414200133342 2121300200013 3535500333355 4242600400026 7071000666710 10606501000065 21213002000130