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71069923 = 2910312377
BaseRepresentation
bin1000011110001…
…11000011100011
311221201201121101
410033013003203
5121143214143
611015135231
71522040641
oct417070343
9157651541
1071069923
1137131981
121b974517
1311954812
149620191
15638cb4d
hex43c70e3

71069923 has 8 divisors (see below), whose sum is σ = 73622880. Its totient is φ = 68523840.

The previous prime is 71069909. The next prime is 71069951. The reversal of 71069923 is 32996017.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-71069923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71069903) 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, 28711 + ... + 31087.

It is an arithmetic number, because the mean of its divisors is an integer number (9202860).

Almost surely, 271069923 is an apocalyptic number.

71069923 is a deficient number, since it is larger than the sum of its proper divisors (2552957).

71069923 is a wasteful number, since it uses less digits than its factorization.

71069923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 71069923 is about 8430.2979188164. The cubic root of 71069923 is about 414.2176638637.

The spelling of 71069923 in words is "seventy-one million, sixty-nine thousand, nine hundred twenty-three".

Divisors: 1 29 1031 2377 29899 68933 2450687 71069923