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83002740 = 22351383379
BaseRepresentation
bin1001111001010…
…00010101110100
312210011222100120
410330220111310
5132222041430
612123011540
72025340332
oct474502564
9183158316
1083002740
1142942207
1223969bb0
1314272062
14b048b52
157448610
hex4f28574

83002740 has 24 divisors (see below), whose sum is σ = 232407840. Its totient is φ = 22134048.

The previous prime is 83002723. The next prime is 83002741. The reversal of 83002740 is 4720038.

It is a self number, because there is not a number n which added to its sum of digits gives 83002740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83002741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691630 + ... + 691749.

It is an arithmetic number, because the mean of its divisors is an integer number (9683660).

Almost surely, 283002740 is an apocalyptic number.

It is an amenable number.

83002740 is an abundant number, since it is smaller than the sum of its proper divisors (149405100).

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

83002740 is a wasteful number, since it uses less digits than its factorization.

83002740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383391 (or 1383389 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 83002740 is about 9110.5839549394. The cubic root of 83002740 is about 436.2118671222.

Adding to 83002740 its reverse (4720038), we get a palindrome (87722778).

The spelling of 83002740 in words is "eighty-three million, two thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1383379 2766758 4150137 5533516 6916895 8300274 13833790 16600548 20750685 27667580 41501370 83002740