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30212012020 = 2252365678287
BaseRepresentation
bin11100001000110001…
…101011011111110100
32212222112020020012011
4130020301223133310
5443333233341040
621513524134004
72116452602461
oct341061533764
985875206164
1030212012020
11118a3990883
125a31b37304
132b062969b8
141668676668
15bbc5573ea
hex708c6b7f4

30212012020 has 24 divisors (see below), whose sum is σ = 66203714304. Its totient is φ = 11559378336.

The previous prime is 30212012011. The next prime is 30212012029. The reversal of 30212012020 is 2021021203.

It is an interprime number because it is at equal distance from previous prime (30212012011) and next prime (30212012029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212012029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32838684 + ... + 32839603.

It is an arithmetic number, because the mean of its divisors is an integer number (2758488096).

Almost surely, 230212012020 is an apocalyptic number.

It is an amenable number.

30212012020 is an abundant number, since it is smaller than the sum of its proper divisors (35991702284).

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

30212012020 is a wasteful number, since it uses less digits than its factorization.

30212012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65678319 (or 65678317 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30212012020 its reverse (2021021203), we get a palindrome (32233033223).

The spelling of 30212012020 in words is "thirty billion, two hundred twelve million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 65678287 131356574 262713148 328391435 656782870 1313565740 1510600601 3021201202 6042402404 7553003005 15106006010 30212012020