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69790039 = 1161104009
BaseRepresentation
bin1000010100011…
…10100101010111
311212022200221021
410022032211113
5120331240124
610531502011
71505130334
oct412164527
9155280837
1069790039
1136438320
121b457907
13115c70a7
1493a998b
1561d87e4
hex428e957

69790039 has 8 divisors (see below), whose sum is σ = 77383440. Its totient is φ = 62404800.

The previous prime is 69790033. The next prime is 69790057. The reversal of 69790039 is 93009796.

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

It is a cyclic number.

It is not a de Polignac number, because 69790039 - 23 = 69790031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69789977 and 69790004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69790031) 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, 51334 + ... + 52675.

It is an arithmetic number, because the mean of its divisors is an integer number (9672930).

Almost surely, 269790039 is an apocalyptic number.

69790039 is a deficient number, since it is larger than the sum of its proper divisors (7593401).

69790039 is a wasteful number, since it uses less digits than its factorization.

69790039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104081.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 69790039 is about 8354.0432725717. The cubic root of 69790039 is about 411.7160653257.

The spelling of 69790039 in words is "sixty-nine million, seven hundred ninety thousand, thirty-nine".

Divisors: 1 11 61 671 104009 1144099 6344549 69790039