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213794288092 = 227115571246207
BaseRepresentation
bin1100011100011100100…
…0011111000111011100
3202102211200200010101101
43013013020133013130
512000322314204332
6242114333322444
721306010315240
oct3070710370734
9672750603341
10213794288092
1182740335aa0
1235527336424
1317212123c18
14a4c212a420
1558644c0ae7
hex31c721f1dc

213794288092 has 48 divisors (see below), whose sum is σ = 467298091008. Its totient is φ = 83146864320.

The previous prime is 213794288087. The next prime is 213794288093. The reversal of 213794288092 is 290882497312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213794288093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451548 + ... + 794659.

It is an arithmetic number, because the mean of its divisors is an integer number (9735376896).

Almost surely, 2213794288092 is an apocalyptic number.

213794288092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213794288092 is an abundant number, since it is smaller than the sum of its proper divisors (253503802916).

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

213794288092 is a wasteful number, since it uses less digits than its factorization.

213794288092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246786 (or 1246784 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 213794288092 in words is "two hundred thirteen billion, seven hundred ninety-four million, two hundred eighty-eight thousand, ninety-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 557 1114 2228 3899 6127 7798 12254 15596 24508 42889 85778 171556 1246207 2492414 4984828 8723449 13708277 17446898 27416554 34893796 54833108 95957939 191915878 383831756 694137299 1388274598 2776549196 4858961093 7635510289 9717922186 15271020578 19435844372 30542041156 53448572023 106897144046 213794288092