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71440982 = 245778163
BaseRepresentation
bin1000100001000…
…01101001010110
311222102120121022
410100201221112
5121242102412
611031121142
71525144514
oct420415126
9158376538
1071440982
1137365738
121bb131b2
1311a54692
1496b94b4
156412a72
hex4421a56

71440982 has 8 divisors (see below), whose sum is σ = 107397336. Its totient is φ = 35641872.

The previous prime is 71440951. The next prime is 71441009. The reversal of 71440982 is 28904417.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38168 + ... + 39995.

It is an arithmetic number, because the mean of its divisors is an integer number (13424667).

Almost surely, 271440982 is an apocalyptic number.

71440982 is a deficient number, since it is larger than the sum of its proper divisors (35956354).

71440982 is a wasteful number, since it uses less digits than its factorization.

71440982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78622.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 71440982 is about 8452.2767347029. The cubic root of 71440982 is about 414.9372954083.

The spelling of 71440982 in words is "seventy-one million, four hundred forty thousand, nine hundred eighty-two".

Divisors: 1 2 457 914 78163 156326 35720491 71440982