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70330833 = 3210971693
BaseRepresentation
bin1000011000100…
…10100111010001
311220100011202200
410030102213101
5121001041313
610551233413
71512542106
oct414224721
9156304680
1070330833
1136777661
121b678869
13117562a1
1494aaaad
156293b73
hex43129d1

70330833 has 12 divisors (see below), whose sum is σ = 102522420. Its totient is φ = 46456416.

The previous prime is 70330801. The next prime is 70330903. The reversal of 70330833 is 33803307.

It can be written as a sum of positive squares in 2 ways, for example, as 30603024 + 39727809 = 5532^2 + 6303^2 .

It is not a de Polignac number, because 70330833 - 25 = 70330801 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 70330797 and 70330806.

It is not an unprimeable number, because it can be changed into a prime (70330333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34866 + ... + 36827.

It is an arithmetic number, because the mean of its divisors is an integer number (8543535).

Almost surely, 270330833 is an apocalyptic number.

It is an amenable number.

70330833 is a deficient number, since it is larger than the sum of its proper divisors (32191587).

70330833 is a wasteful number, since it uses less digits than its factorization.

70330833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71808 (or 71805 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 70330833 is about 8386.3480132892. The cubic root of 70330833 is about 412.7767751322.

The spelling of 70330833 in words is "seventy million, three hundred thirty thousand, eight hundred thirty-three".

Divisors: 1 3 9 109 327 981 71693 215079 645237 7814537 23443611 70330833