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85688277 = 330199461
BaseRepresentation
bin1010001101101…
…11111111010101
312222020102012220
411012313333111
5133414011102
612300332553
72060224023
oct506677725
9188212186
1085688277
1144406964
1224844159
13149a252c
14b547713
1577c91bc
hex51b7fd5

85688277 has 8 divisors (see below), whose sum is σ = 114300960. Its totient is φ = 57100560.

The previous prime is 85688249. The next prime is 85688311. The reversal of 85688277 is 77288658.

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

It is not a de Polignac number, because 85688277 - 27 = 85688149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85688077) 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, 4327 + ... + 13787.

It is an arithmetic number, because the mean of its divisors is an integer number (14287620).

Almost surely, 285688277 is an apocalyptic number.

It is an amenable number.

85688277 is a deficient number, since it is larger than the sum of its proper divisors (28612683).

85688277 is a wasteful number, since it uses less digits than its factorization.

85688277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12483.

The product of its digits is 1505280, while the sum is 51.

The square root of 85688277 is about 9256.7962600459. The cubic root of 85688277 is about 440.8665378399.

The spelling of 85688277 in words is "eighty-five million, six hundred eighty-eight thousand, two hundred seventy-seven".

Divisors: 1 3 3019 9057 9461 28383 28562759 85688277