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83306868 = 223171921493
BaseRepresentation
bin1001111011100…
…10100101110100
312210202102112120
410331302211310
5132311304433
612133315540
72031045111
oct475624564
9183672476
1083306868
114302a757
1223a95bb0
131434a608
14b0c7908
1574a87b3
hex4f72974

83306868 has 48 divisors (see below), whose sum is σ = 216659520. Its totient is φ = 24758784.

The previous prime is 83306863. The next prime is 83306893. The reversal of 83306868 is 86860338.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83306863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6871 + ... + 14622.

It is an arithmetic number, because the mean of its divisors is an integer number (4513740).

Almost surely, 283306868 is an apocalyptic number.

It is an amenable number.

83306868 is an abundant number, since it is smaller than the sum of its proper divisors (133352652).

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

83306868 is a wasteful number, since it uses less digits than its factorization.

83306868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21536 (or 21534 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 83306868 is about 9127.2596106389. The cubic root of 83306868 is about 436.7439882760.

The spelling of 83306868 in words is "eighty-three million, three hundred six thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 17 19 34 38 51 57 68 76 102 114 204 228 323 646 969 1292 1938 3876 21493 42986 64479 85972 128958 257916 365381 408367 730762 816734 1096143 1225101 1461524 1633468 2192286 2450202 4384572 4900404 6942239 13884478 20826717 27768956 41653434 83306868