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230588728 = 2328823591
BaseRepresentation
bin11011011111010…
…00000100111000
3121001220010021021
431233220010320
5433012314403
634514152224
75466654226
oct1557500470
9531803237
10230588728
111091857a7
1265282674
1338a07246
14228a5b16
151539c8bd
hexdbe8138

230588728 has 8 divisors (see below), whose sum is σ = 432353880. Its totient is φ = 115294360.

The previous prime is 230588717. The next prime is 230588753. The reversal of 230588728 is 827885032.

230588728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2305887282 = 106342322961315968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14411788 + ... + 14411803.

It is an arithmetic number, because the mean of its divisors is an integer number (54044235).

Almost surely, 2230588728 is an apocalyptic number.

It is an amenable number.

230588728 is a deficient number, since it is larger than the sum of its proper divisors (201765152).

230588728 is a wasteful number, since it uses less digits than its factorization.

230588728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28823597 (or 28823593 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 230588728 is about 15185.1482705965. The cubic root of 230588728 is about 613.2148891739.

The spelling of 230588728 in words is "two hundred thirty million, five hundred eighty-eight thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 28823591 57647182 115294364 230588728