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83075398 = 2743137999
BaseRepresentation
bin1001111001110…
…10000101000110
312210022200000121
410330322011012
5132231403043
612124332154
72026062220
oct474720506
9183280017
1083075398
114299185a
12239a405a
1314299153
14b067410
15745eded
hex4f3a146

83075398 has 16 divisors (see below), whose sum is σ = 145728000. Its totient is φ = 34775496.

The previous prime is 83075393. The next prime is 83075407. The reversal of 83075398 is 89357038.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83075393) 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, 68398 + ... + 69601.

It is an arithmetic number, because the mean of its divisors is an integer number (9108000).

Almost surely, 283075398 is an apocalyptic number.

83075398 is a deficient number, since it is larger than the sum of its proper divisors (62652602).

83075398 is a wasteful number, since it uses less digits than its factorization.

83075398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138051.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 83075398 is about 9114.5706426578. The cubic root of 83075398 is about 436.3391120713.

The spelling of 83075398 in words is "eighty-three million, seventy-five thousand, three hundred ninety-eight".

Divisors: 1 2 7 14 43 86 301 602 137999 275998 965993 1931986 5933957 11867914 41537699 83075398