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30211112000020 = 2257215793657143
BaseRepresentation
bin1101101111010000100101…
…00110010101101000010100
310221222011011100011112100211
412313220102212111220110
512424434324133000040
6144130443202015204
76235452342650560
oct667502246255024
9127864140145324
1030211112000020
119698508138346
12347b148347504
1313b1b8493b563
147663231746a0
15375cd8a628ea
hex1b7a12995a14

30211112000020 has 24 divisors (see below), whose sum is σ = 72506668800384. Its totient is φ = 10358095542816.

The previous prime is 30211112000009. The next prime is 30211112000029. The reversal of 30211112000020 is 2000021111203.

It is a super-2 number, since 2×302111120000202 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211112000029) 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, 107896828432 + ... + 107896828711.

It is an arithmetic number, because the mean of its divisors is an integer number (3021111200016).

Almost surely, 230211112000020 is an apocalyptic number.

It is an amenable number.

30211112000020 is an abundant number, since it is smaller than the sum of its proper divisors (42295556800364).

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

30211112000020 is a wasteful number, since it uses less digits than its factorization.

30211112000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215793657159 (or 215793657157 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30211112000020 its reverse (2000021111203), we get a palindrome (32211133111223).

The spelling of 30211112000020 in words is "thirty trillion, two hundred eleven billion, one hundred twelve million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 215793657143 431587314286 863174628572 1078968285715 1510555600001 2157936571430 3021111200002 4315873142860 6042222400004 7552778000005 15105556000010 30211112000020