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71050601 = 131542371
BaseRepresentation
bin1000011110000…
…10010101101001
311221200202002202
410033002111221
5121142104401
611014505545
71521630416
oct417022551
9157622082
1071050601
1137119406
121b9652b5
1311948a9b
14961710d
15638706b
hex43c2569

71050601 has 4 divisors (see below), whose sum is σ = 71593104. Its totient is φ = 70508100.

The previous prime is 71050597. The next prime is 71050607. The reversal of 71050601 is 10605017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71050601 - 22 = 71050597 is a prime.

It is a super-2 number, since 2×710506012 = 10096375804922402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71050607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271055 + ... + 271316.

It is an arithmetic number, because the mean of its divisors is an integer number (17898276).

Almost surely, 271050601 is an apocalyptic number.

It is an amenable number.

71050601 is a deficient number, since it is larger than the sum of its proper divisors (542503).

71050601 is a wasteful number, since it uses less digits than its factorization.

71050601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542502.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 71050601 is about 8429.1518553174. The cubic root of 71050601 is about 414.1801222484.

Adding to 71050601 its reverse (10605017), we get a palindrome (81655618).

The spelling of 71050601 in words is "seventy-one million, fifty thousand, six hundred one".

Divisors: 1 131 542371 71050601