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85043077 = 73247939
BaseRepresentation
bin1010001000110…
…10011110000101
312221000122011121
411010122132011
5133232334302
612234433541
72051566000
oct504323605
9187018147
1085043077
1144006139
12245928b1
1314807962
14b41a537
1576ece37
hex511a785

85043077 has 8 divisors (see below), whose sum is σ = 99176000. Its totient is φ = 72893772.

The previous prime is 85043047. The next prime is 85043081. The reversal of 85043077 is 77034058.

It is not a de Polignac number, because 85043077 - 215 = 85010309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85043047) 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, 123627 + ... + 124312.

It is an arithmetic number, because the mean of its divisors is an integer number (12397000).

Almost surely, 285043077 is an apocalyptic number.

It is an amenable number.

85043077 is a deficient number, since it is larger than the sum of its proper divisors (14132923).

85043077 is an equidigital number, since it uses as much as digits as its factorization.

85043077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247960 (or 247946 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 85043077 is about 9221.8803397138. The cubic root of 85043077 is about 439.7572300571.

The spelling of 85043077 in words is "eighty-five million, forty-three thousand, seventy-seven".

Divisors: 1 7 49 343 247939 1735573 12149011 85043077