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83145468 = 2237989827
BaseRepresentation
bin1001111010010…
…11001011111100
312210110020010210
410331023023330
5132241123333
612130032420
72026503420
oct475131374
9183406123
1083145468
1142a2a46a
1223a18710
13142c2003
14b084b80
157475a63
hex4f4b2fc

83145468 has 24 divisors (see below), whose sum is σ = 221721472. Its totient is φ = 23755824.

The previous prime is 83145451. The next prime is 83145493. The reversal of 83145468 is 86454138.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494830 + ... + 494997.

Almost surely, 283145468 is an apocalyptic number.

It is an amenable number.

83145468 is an abundant number, since it is smaller than the sum of its proper divisors (138576004).

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

83145468 is a wasteful number, since it uses less digits than its factorization.

83145468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989841 (or 989839 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 83145468 is about 9118.4136778280. The cubic root of 83145468 is about 436.4617544355.

The spelling of 83145468 in words is "eighty-three million, one hundred forty-five thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 989827 1979654 2969481 3959308 5938962 6928789 11877924 13857578 20786367 27715156 41572734 83145468