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85672765 = 5149114997
BaseRepresentation
bin1010001101101…
…00001100111101
312222012121221101
411012310030331
5133413012030
612300133101
72060130553
oct506641475
9188177841
1085672765
11443a6242
1224837191
1314998459
14b541bd3
1577c47ca
hex51b433d

85672765 has 8 divisors (see below), whose sum is σ = 103498200. Its totient is φ = 68077632.

The previous prime is 85672759. The next prime is 85672777. The reversal of 85672765 is 56727658.

It can be written as a sum of positive squares in 4 ways, for example, as 54756 + 85618009 = 234^2 + 9253^2 .

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 85672765 - 25 = 85672733 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56754 + ... + 58243.

It is an arithmetic number, because the mean of its divisors is an integer number (12937275).

Almost surely, 285672765 is an apocalyptic number.

It is an amenable number.

85672765 is a deficient number, since it is larger than the sum of its proper divisors (17825435).

85672765 is a wasteful number, since it uses less digits than its factorization.

85672765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115151.

The product of its digits is 705600, while the sum is 46.

The square root of 85672765 is about 9255.9583512460. The cubic root of 85672765 is about 440.8399331331.

The spelling of 85672765 in words is "eighty-five million, six hundred seventy-two thousand, seven hundred sixty-five".

Divisors: 1 5 149 745 114997 574985 17134553 85672765