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71873413 = 238233797
BaseRepresentation
bin1000100100010…
…11001110000101
312000020112210021
410102023032011
5121344422123
611044255141
71531625323
oct422131605
9160215707
1071873413
1137630617
12200a14b1
1311b76461
14978cd13
15649ac5d
hex448b385

71873413 has 8 divisors (see below), whose sum is σ = 75109248. Its totient is φ = 68646864.

The previous prime is 71873381. The next prime is 71873419. The reversal of 71873413 is 31437817.

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 71873413 - 25 = 71873381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71873419) 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, 17031 + ... + 20827.

It is an arithmetic number, because the mean of its divisors is an integer number (9388656).

Almost surely, 271873413 is an apocalyptic number.

It is an amenable number.

71873413 is a deficient number, since it is larger than the sum of its proper divisors (3235835).

71873413 is a wasteful number, since it uses less digits than its factorization.

71873413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643.

The product of its digits is 14112, while the sum is 34.

The square root of 71873413 is about 8477.8188822362. The cubic root of 71873413 is about 415.7728145772.

The spelling of 71873413 in words is "seventy-one million, eight hundred seventy-three thousand, four hundred thirteen".

Divisors: 1 23 823 3797 18929 87331 3124931 71873413