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85078127 = 233699049
BaseRepresentation
bin1010001001000…
…11000001101111
312221002102020202
411010203001233
5133240000002
612235304115
72052103121
oct504430157
9187072222
1085078127
114402a502
12245ab03b
131481a8b4
14b429211
157708502
hex512306f

85078127 has 4 divisors (see below), whose sum is σ = 88777200. Its totient is φ = 81379056.

The previous prime is 85078121. The next prime is 85078129. The reversal of 85078127 is 72187058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72187058 = 236093529.

It is a cyclic number.

It is not a de Polignac number, because 85078127 - 220 = 84029551 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85078121) 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, 1849502 + ... + 1849547.

It is an arithmetic number, because the mean of its divisors is an integer number (22194300).

Almost surely, 285078127 is an apocalyptic number.

85078127 is a deficient number, since it is larger than the sum of its proper divisors (3699073).

85078127 is a wasteful number, since it uses less digits than its factorization.

85078127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699072.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 85078127 is about 9223.7805156020. The cubic root of 85078127 is about 439.8176362042.

The spelling of 85078127 in words is "eighty-five million, seventy-eight thousand, one hundred twenty-seven".

Divisors: 1 23 3699049 85078127