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228709159112 = 23729140830763
BaseRepresentation
bin1101010100000000100…
…0001101000011001000
3210212100010122002001202
43111000020031003020
512221344021042422
6253022331003332
722344424530230
oct3250010150310
9725303562052
10228709159112
1188aa43a3385
12383aa299548
131874b1351a5
14b0d8d10cc0
155e38abbb92
hex354020d0c8

228709159112 has 32 divisors (see below), whose sum is σ = 506990750400. Its totient is φ = 94638272064.

The previous prime is 228709159057. The next prime is 228709159117. The reversal of 228709159112 is 211951907822.

It is not an unprimeable number, because it can be changed into a prime (228709159117) 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, 70413758 + ... + 70417005.

It is an arithmetic number, because the mean of its divisors is an integer number (15843460950).

Almost surely, 2228709159112 is an apocalyptic number.

It is an amenable number.

228709159112 is an abundant number, since it is smaller than the sum of its proper divisors (278281591288).

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

228709159112 is a wasteful number, since it uses less digits than its factorization.

228709159112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140830805 (or 140830801 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 47.

The spelling of 228709159112 in words is "two hundred twenty-eight billion, seven hundred nine million, one hundred fifty-nine thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 29 56 58 116 203 232 406 812 1624 140830763 281661526 563323052 985815341 1126646104 1971630682 3943261364 4084092127 7886522728 8168184254 16336368508 28588644889 32672737016 57177289778 114354579556 228709159112