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30203230312212 = 2232516935859351
BaseRepresentation
bin1101101111000001111001…
…10100000101011100010100
310221221101211001101022021120
412313200330310011130110
512424322203424442322
6144123101130043540
76235053126502116
oct667407464053424
9127841731338246
1030203230312212
119695133129671
1234797088795b0
1313b11c9a81069
14765bb64a73b6
153759c6b37a5c
hex1b783cd05714

30203230312212 has 12 divisors (see below), whose sum is σ = 70474204061856. Its totient is φ = 10067743437400.

The previous prime is 30203230312207. The next prime is 30203230312219. The reversal of 30203230312212 is 21221303230203.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×302032303122123 (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 (30203230312219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258467929664 + ... + 1258467929687.

It is an arithmetic number, because the mean of its divisors is an integer number (5872850338488).

Almost surely, 230203230312212 is an apocalyptic number.

It is an amenable number.

30203230312212 is an abundant number, since it is smaller than the sum of its proper divisors (40270973749644).

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

30203230312212 is a wasteful number, since it uses less digits than its factorization.

30203230312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516935859358 (or 2516935859356 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30203230312212 its reverse (21221303230203), we get a palindrome (51424533542415).

The spelling of 30203230312212 in words is "thirty trillion, two hundred three billion, two hundred thirty million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 2516935859351 5033871718702 7550807578053 10067743437404 15101615156106 30203230312212