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230251620 = 223523166849
BaseRepresentation
bin11011011100101…
…01110001100100
3121001020222211210
431232111301210
5432421022440
634503031420
75464051344
oct1556256144
9531228753
10230251620
11108a754a5
126513b570
1338919981
1422818d24
1515332a80
hexdb95c64

230251620 has 48 divisors (see below), whose sum is σ = 672739200. Its totient is φ = 58730496.

The previous prime is 230251607. The next prime is 230251639. The reversal of 230251620 is 26152032.

230251620 = 31532 + 31542 + ... + 31752.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82045 + ... + 84804.

It is an arithmetic number, because the mean of its divisors is an integer number (14015400).

Almost surely, 2230251620 is an apocalyptic number.

230251620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230251620 is an abundant number, since it is smaller than the sum of its proper divisors (442487580).

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

230251620 is a wasteful number, since it uses less digits than its factorization.

230251620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166884 (or 166882 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 230251620 is about 15174.0442862145. The cubic root of 230251620 is about 612.9159146517.

The spelling of 230251620 in words is "two hundred thirty million, two hundred fifty-one thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 166849 333698 500547 667396 834245 1001094 1668490 2002188 2502735 3336980 3837527 5005470 7675054 10010940 11512581 15350108 19187635 23025162 38375270 46050324 57562905 76750540 115125810 230251620