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71600961 = 326390749
BaseRepresentation
bin1000100010010…
…00101101000001
311222201201001110
410101020231001
5121312212321
611034353533
71526412105
oct421105501
9158651043
1071600961
1137464953
121bb8b8a9
1311aac443
14971b905
156445176
hex4448b41

71600961 has 8 divisors (see below), whose sum is σ = 95832000. Its totient is φ = 47551952.

The previous prime is 71600959. The next prime is 71600983. The reversal of 71600961 is 16900617.

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 71600961 - 21 = 71600959 is a prime.

It is a super-2 number, since 2×716009612 = 10253395232247042, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71600261) 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, 44586 + ... + 46163.

It is an arithmetic number, because the mean of its divisors is an integer number (11979000).

Almost surely, 271600961 is an apocalyptic number.

It is an amenable number.

71600961 is a deficient number, since it is larger than the sum of its proper divisors (24231039).

71600961 is a wasteful number, since it uses less digits than its factorization.

71600961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91015.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 71600961 is about 8461.7351057570. The cubic root of 71600961 is about 415.2467898736.

The spelling of 71600961 in words is "seventy-one million, six hundred thousand, nine hundred sixty-one".

Divisors: 1 3 263 789 90749 272247 23866987 71600961