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71882393 = 1113747699
BaseRepresentation
bin1000100100011…
…01011010011001
312000021000002212
410102031122121
5121400214033
611044404505
71531663442
oct422153231
9160230085
1071882393
1137637340
12200a6735
1311b7a57b
1497922c9
15649d748
hex448d699

71882393 has 8 divisors (see below), whose sum is σ = 78991200. Its totient is φ = 64869280.

The previous prime is 71882353. The next prime is 71882401. The reversal of 71882393 is 39328817.

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 71882393 - 212 = 71878297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71882393.

It is not an unprimeable number, because it can be changed into a prime (71882303) 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, 22343 + ... + 25356.

It is an arithmetic number, because the mean of its divisors is an integer number (9873900).

Almost surely, 271882393 is an apocalyptic number.

It is an amenable number.

71882393 is a deficient number, since it is larger than the sum of its proper divisors (7108807).

71882393 is a wasteful number, since it uses less digits than its factorization.

71882393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47847.

The product of its digits is 72576, while the sum is 41.

The square root of 71882393 is about 8478.3484830479. The cubic root of 71882393 is about 415.7901296698.

The spelling of 71882393 in words is "seventy-one million, eight hundred eighty-two thousand, three hundred ninety-three".

Divisors: 1 11 137 1507 47699 524689 6534763 71882393