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83166084 = 223229372153
BaseRepresentation
bin1001111010100…
…00001110000100
312210111021102100
410331100032010
5132242303314
612130312100
72026620501
oct475201604
9183437370
1083166084
1142a43a01
1223a28630
13142cb501
14b08c4a8
15747bc09
hex4f50384

83166084 has 72 divisors (see below), whose sum is σ = 223455960. Its totient is φ = 26030592.

The previous prime is 83166073. The next prime is 83166107. The reversal of 83166084 is 48066138.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11289600 + 71876484 = 3360^2 + 8478^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 37552 + ... + 39704.

It is an arithmetic number, because the mean of its divisors is an integer number (3103555).

Almost surely, 283166084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83166084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111727980).

83166084 is an abundant number, since it is smaller than the sum of its proper divisors (140289876).

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

83166084 is a wasteful number, since it uses less digits than its factorization.

83166084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 83166084 is about 9119.5440675507. The cubic root of 83166084 is about 436.4978251605.

It can be divided in two parts, 831660 and 84, that added together give a square (831744 = 9122).

The spelling of 83166084 in words is "eighty-three million, one hundred sixty-six thousand, eighty-four".

Divisors: 1 2 3 4 6 9 12 18 29 36 37 58 74 87 111 116 148 174 222 261 333 348 444 522 666 1044 1073 1332 2146 2153 3219 4292 4306 6438 6459 8612 9657 12876 12918 19314 19377 25836 38628 38754 62437 77508 79661 124874 159322 187311 238983 249748 318644 374622 477966 561933 716949 749244 955932 1123866 1433898 2247732 2310169 2867796 4620338 6930507 9240676 13861014 20791521 27722028 41583042 83166084