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68839435 = 571966841
BaseRepresentation
bin1000001101001…
…10100000001011
311210112101221201
410012212200023
5120110330220
610455245031
71464061030
oct406464013
9153471851
1068839435
11359490a5
121b079777
13113534c2
1491dd387
15609bd0a
hex41a680b

68839435 has 8 divisors (see below), whose sum is σ = 94408416. Its totient is φ = 47204160.

The previous prime is 68839429. The next prime is 68839439. The reversal of 68839435 is 53493886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68839435 - 29 = 68838923 is a prime.

It is a super-2 number, since 2×688394352 = 9477735622238450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68839439) 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, 983386 + ... + 983455.

It is an arithmetic number, because the mean of its divisors is an integer number (11801052).

Almost surely, 268839435 is an apocalyptic number.

68839435 is a deficient number, since it is larger than the sum of its proper divisors (25568981).

68839435 is a wasteful number, since it uses less digits than its factorization.

68839435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966853.

The product of its digits is 622080, while the sum is 46.

The square root of 68839435 is about 8296.9533565038. The cubic root of 68839435 is about 409.8381971101.

The spelling of 68839435 in words is "sixty-eight million, eight hundred thirty-nine thousand, four hundred thirty-five".

Divisors: 1 5 7 35 1966841 9834205 13767887 68839435