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71516495 = 537673797
BaseRepresentation
bin1000100001101…
…00000101001111
311222120102012002
410100310011033
5121302011440
611032502515
71525610621
oct420640517
9158512162
1071516495
1137407446
121bb4aa3b
1311a7cb6b
1496d8c11
15642a115
hex443414f

71516495 has 8 divisors (see below), whose sum is σ = 85865184. Its totient is φ = 57182944.

The previous prime is 71516443. The next prime is 71516503. The reversal of 71516495 is 59461517.

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 71516495 - 210 = 71515471 is a prime.

It is a super-2 number, since 2×715164952 = 10229218114170050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 16937 + ... + 20733.

It is an arithmetic number, because the mean of its divisors is an integer number (10733148).

Almost surely, 271516495 is an apocalyptic number.

71516495 is a deficient number, since it is larger than the sum of its proper divisors (14348689).

71516495 is a wasteful number, since it uses less digits than its factorization.

71516495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569.

The product of its digits is 37800, while the sum is 38.

The square root of 71516495 is about 8456.7425761933. The cubic root of 71516495 is about 415.0834399409.

The spelling of 71516495 in words is "seventy-one million, five hundred sixteen thousand, four hundred ninety-five".

Divisors: 1 5 3767 3797 18835 18985 14303299 71516495