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71141077 = 771143141
BaseRepresentation
bin1000011110110…
…00011011010101
311221212100012201
410033120123111
5121203003302
611020444501
71522455250
oct417303325
9157770181
1071141077
1137180387
121b9a9731
131197b017
14963c097
1563a3c87
hex43d86d5

71141077 has 8 divisors (see below), whose sum is σ = 82449792. Its totient is φ = 60118800.

The previous prime is 71141029. The next prime is 71141099. The reversal of 71141077 is 77014117.

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

It is not a de Polignac number, because 71141077 - 219 = 70616789 is a prime.

It is a super-2 number, since 2×711410772 = 10122105673439858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71144077) 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, 71074 + ... + 72067.

It is an arithmetic number, because the mean of its divisors is an integer number (10306224).

Almost surely, 271141077 is an apocalyptic number.

It is an amenable number.

71141077 is a deficient number, since it is larger than the sum of its proper divisors (11308715).

71141077 is a wasteful number, since it uses less digits than its factorization.

71141077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143219.

The product of its (nonzero) digits is 1372, while the sum is 28.

The square root of 71141077 is about 8434.5169986194. The cubic root of 71141077 is about 414.3558536532.

The spelling of 71141077 in words is "seventy-one million, one hundred forty-one thousand, seventy-seven".

Divisors: 1 7 71 497 143141 1001987 10163011 71141077