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230515560 = 233251158211
BaseRepresentation
bin11011011110101…
…10001101101000
3121001202101220100
431233112031220
5433002444220
634512425400
75466231012
oct1557261550
9531671810
10230515560
11109135830
1265248260
13389acb52
14228871b2
1515385d90
hexdbd6368

230515560 has 96 divisors (see below), whose sum is σ = 817296480. Its totient is φ = 55881600.

The previous prime is 230515511. The next prime is 230515567. The reversal of 230515560 is 65515032.

It is a super-2 number, since 2×2305155602 = 106274846804227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230515567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25146 + ... + 33065.

It is an arithmetic number, because the mean of its divisors is an integer number (8513505).

Almost surely, 2230515560 is an apocalyptic number.

230515560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230515560 is an abundant number, since it is smaller than the sum of its proper divisors (586780920).

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

230515560 is a wasteful number, since it uses less digits than its factorization.

230515560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58239 (or 58232 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 230515560 is about 15182.7388833504. The cubic root of 230515560 is about 613.1500226705.

The spelling of 230515560 in words is "two hundred thirty million, five hundred fifteen thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 30 33 36 40 44 45 55 60 66 72 88 90 99 110 120 132 165 180 198 220 264 330 360 396 440 495 660 792 990 1320 1980 3960 58211 116422 174633 232844 291055 349266 465688 523899 582110 640321 698532 873165 1047798 1164220 1280642 1397064 1746330 1920963 2095596 2328440 2561284 2619495 3201605 3492660 3841926 4191192 5122568 5238990 5762889 6403210 6985320 7683852 9604815 10477980 11525778 12806420 15367704 19209630 20955960 23051556 25612840 28814445 38419260 46103112 57628890 76838520 115257780 230515560