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230597556 = 22372745209
BaseRepresentation
bin11011011111010…
…10001110110100
3121001220120101020
431233222032310
5433013110211
634514301140
75500022040
oct1557521664
9531816336
10230597556
111091913a2
12652877b0
1338a0b277
14228a9020
15153a0306
hexdbea3b4

230597556 has 24 divisors (see below), whose sum is σ = 614927040. Its totient is φ = 65884992.

The previous prime is 230597551. The next prime is 230597569. The reversal of 230597556 is 655795032.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230597551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372521 + ... + 1372688.

It is an arithmetic number, because the mean of its divisors is an integer number (25621960).

Almost surely, 2230597556 is an apocalyptic number.

It is an amenable number.

230597556 is an abundant number, since it is smaller than the sum of its proper divisors (384329484).

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

230597556 is a wasteful number, since it uses less digits than its factorization.

230597556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745223 (or 2745221 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 42.

The square root of 230597556 is about 15185.4389465698. The cubic root of 230597556 is about 613.2227146387. Note that the first 3 decimals are identical.

The spelling of 230597556 in words is "two hundred thirty million, five hundred ninety-seven thousand, five hundred fifty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2745209 5490418 8235627 10980836 16471254 19216463 32942508 38432926 57649389 76865852 115298778 230597556