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230943001666 = 21318149074161
BaseRepresentation
bin1101011100010101000…
…1101000110001000010
3211002002211000000222011
43113011101220301002
512240432402023131
6254032130003134
722453661060566
oct3270521506102
9732084000864
10230943001666
1189a40338353
12389124164aa
1318a15b85810
14b26b87b6a6
156019c710b1
hex35c5468c42

230943001666 has 16 divisors (see below), whose sum is σ = 375122894328. Its totient is φ = 106000185600.

The previous prime is 230943001651. The next prime is 230943001711. The reversal of 230943001666 is 666100349032.

It can be written as a sum of positive squares in 4 ways, for example, as 129423660025 + 101519341641 = 359755^2 + 318621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24532375 + ... + 24541786.

Almost surely, 2230943001666 is an apocalyptic number.

230943001666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

230943001666 is a deficient number, since it is larger than the sum of its proper divisors (144179892662).

230943001666 is a wasteful number, since it uses less digits than its factorization.

230943001666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49074357.

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 230943001666 in words is "two hundred thirty billion, nine hundred forty-three million, one thousand, six hundred sixty-six".

Divisors: 1 2 13 26 181 362 2353 4706 49074161 98148322 637964093 1275928186 8882423141 17764846282 115471500833 230943001666