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83066740 = 22517923203
BaseRepresentation
bin1001111001101…
…11111101110100
312210022020010221
410330313331310
5132231113430
612124224124
72026025041
oct474677564
9183266127
1083066740
11429862a9
122399b044
1314295223
14b0641c8
15745c57a
hex4f37f74

83066740 has 24 divisors (see below), whose sum is σ = 175422240. Its totient is φ = 33039648.

The previous prime is 83066729. The next prime is 83066747. The reversal of 83066740 is 4766038.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 83066696 and 83066705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83066747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8022 + ... + 15181.

It is an arithmetic number, because the mean of its divisors is an integer number (7309260).

Almost surely, 283066740 is an apocalyptic number.

It is an amenable number.

83066740 is an abundant number, since it is smaller than the sum of its proper divisors (92355500).

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

83066740 is a wasteful number, since it uses less digits than its factorization.

83066740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23391 (or 23389 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 83066740 is about 9114.0956764783. The cubic root of 83066740 is about 436.3239533305.

The spelling of 83066740 in words is "eighty-three million, sixty-six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 23203 46406 92812 116015 232030 464060 4153337 8306674 16613348 20766685 41533370 83066740