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71393029 = 4313712119
BaseRepresentation
bin1000100000101…
…01111100000101
311222100010211021
410100111330011
5121234034104
611030111141
71524554641
oct420257405
9158303737
1071393029
1137332704
121baab4b1
1311a388c6
1496a5c21
156403754
hex4415f05

71393029 has 8 divisors (see below), whose sum is σ = 73592640. Its totient is φ = 69218016.

The previous prime is 71392987. The next prime is 71393033. The reversal of 71393029 is 92039317.

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 71393029 - 27 = 71392901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71392985 and 71393003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71393039) 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 7 ways as a sum of consecutive naturals, for example, 169 + ... + 11950.

It is an arithmetic number, because the mean of its divisors is an integer number (9199080).

Almost surely, 271393029 is an apocalyptic number.

It is an amenable number.

71393029 is a deficient number, since it is larger than the sum of its proper divisors (2199611).

71393029 is a wasteful number, since it uses less digits than its factorization.

71393029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12299.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 71393029 is about 8449.4395672139. The cubic root of 71393029 is about 414.8444358146.

The spelling of 71393029 in words is "seventy-one million, three hundred ninety-three thousand, twenty-nine".

Divisors: 1 43 137 5891 12119 521117 1660303 71393029