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30212020202112 = 2732723162892621
BaseRepresentation
bin1101101111010010010001…
…01110110110101010000000
310221222020111122002222102100
412313221020232312222000
512424443204132431422
6144131113243550400
76235514011360230
oct667511056665200
9127866448088370
1030212020202112
119698933861a91
12347b36052b400
1313b1c9ab47348
147663aba27cc0
15375d3d65e7ac
hex1b7a48bb6a80

30212020202112 has 192 divisors, whose sum is σ = 103677896050560. Its totient is φ = 8256701122560.

The previous prime is 30212020202069. The next prime is 30212020202131. The reversal of 30212020202112 is 21120202021203.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×302120202021122 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81260839 + ... + 81631782.

It is an arithmetic number, because the mean of its divisors is an integer number (539989041930).

Almost surely, 230212020202112 is an apocalyptic number.

30212020202112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30212020202112 is an abundant number, since it is smaller than the sum of its proper divisors (73465875848448).

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

30212020202112 is a wasteful number, since it uses less digits than its factorization.

30212020202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162892671 (or 162892656 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 30212020202112 its reverse (21120202021203), we get a palindrome (51332222223315).

The spelling of 30212020202112 in words is "thirty trillion, two hundred twelve billion, twenty million, two hundred two thousand, one hundred twelve".