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83230890 = 2354759029
BaseRepresentation
bin1001111011000…
…00000010101010
312210121120022120
410331200002222
5132301342030
612131532110
72030310441
oct475400252
9183546276
1083230890
1142a88666
1223a5a036
1314321b62
14b0a7d58
157491010
hex4f600aa

83230890 has 32 divisors (see below), whose sum is σ = 204007680. Its totient is φ = 21722304.

The previous prime is 83230867. The next prime is 83230891. The reversal of 83230890 is 9803238.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83230891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28105 + ... + 30924.

It is an arithmetic number, because the mean of its divisors is an integer number (6375240).

Almost surely, 283230890 is an apocalyptic number.

83230890 is an abundant number, since it is smaller than the sum of its proper divisors (120776790).

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

83230890 is a wasteful number, since it uses less digits than its factorization.

83230890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59086.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 83230890 is about 9123.0965137940. The cubic root of 83230890 is about 436.6111739853.

The spelling of 83230890 in words is "eighty-three million, two hundred thirty thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 59029 118058 177087 295145 354174 590290 885435 1770870 2774363 5548726 8323089 13871815 16646178 27743630 41615445 83230890