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30212020202021 = 734912366770447
BaseRepresentation
bin1101101111010010010001…
…01110110110101000100101
310221222020111122002222021222
412313221020232312220211
512424443204132431041
6144131113243550125
76235514011360040
oct667511056665045
9127866448088258
1030212020202021
119698933861a09
12347b36052b345
1313b1c9ab472a8
147663aba27c57
15375d3d65e74b
hex1b7a48bb6a25

30212020202021 has 8 divisors (see below), whose sum is σ = 34626957254400. Its totient is φ = 25821816691248.

The previous prime is 30212020201969. The next prime is 30212020202069. The reversal of 30212020202021 is 12020202021203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30212020202021 - 214 = 30212020185637 is a prime.

It is a super-3 number, since 3×302120202020213 (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212020232021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6183382781 + ... + 6183387666.

It is an arithmetic number, because the mean of its divisors is an integer number (4328369656800).

Almost surely, 230212020202021 is an apocalyptic number.

It is an amenable number.

30212020202021 is a deficient number, since it is larger than the sum of its proper divisors (4414937052379).

30212020202021 is a wasteful number, since it uses less digits than its factorization.

30212020202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12366770803.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 30212020202021 its reverse (12020202021203), we get a palindrome (42232222223224).

The spelling of 30212020202021 in words is "thirty trillion, two hundred twelve billion, twenty million, two hundred two thousand, twenty-one".

Divisors: 1 7 349 2443 12366770447 86567393129 4316002886003 30212020202021