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230191056 = 243241127307
BaseRepresentation
bin11011011100001…
…10111111010000
3121001010220202200
431232012333100
5432412103211
634501443200
75463406644
oct1556067720
9531126680
10230191056
11108a33a47
1265110500
13388c8234
1422800c24
151531eb56
hexdb86fd0

230191056 has 120 divisors (see below), whose sum is σ = 667290624. Its totient is φ = 74027520.

The previous prime is 230190979. The next prime is 230191079. The reversal of 230191056 is 650191032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 749655 + ... + 749961.

Almost surely, 2230191056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230191056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333645312).

230191056 is an abundant number, since it is smaller than the sum of its proper divisors (437099568).

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

230191056 is a wasteful number, since it uses less digits than its factorization.

230191056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 230191056 is about 15172.0485103364. The cubic root of 230191056 is about 612.8621707018.

The spelling of 230191056 in words is "two hundred thirty million, one hundred ninety-one thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 41 48 72 82 123 127 144 164 246 254 307 328 369 381 492 508 614 656 738 762 921 984 1016 1143 1228 1476 1524 1842 1968 2032 2286 2456 2763 2952 3048 3684 4572 4912 5207 5526 5904 6096 7368 9144 10414 11052 12587 14736 15621 18288 20828 22104 25174 31242 37761 38989 41656 44208 46863 50348 62484 75522 77978 83312 93726 100696 113283 116967 124968 151044 155956 187452 201392 226566 233934 249936 302088 311912 350901 374904 453132 467868 604176 623824 701802 749808 906264 935736 1403604 1598549 1812528 1871472 2807208 3197098 4795647 5614416 6394196 9591294 12788392 14386941 19182588 25576784 28773882 38365176 57547764 76730352 115095528 230191056