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85428710 = 2519942929
BaseRepresentation
bin1010001011110…
…00100111100110
312221202020011022
411011320213212
5133332204320
612251011142
72055063203
oct505704746
9187666138
1085428710
1144249944
1224739ab2
1314911343
14b4bacaa
157777325
hex51789e6

85428710 has 16 divisors (see below), whose sum is σ = 154548000. Its totient is φ = 33998976.

The previous prime is 85428701. The next prime is 85428713. The reversal of 85428710 is 1782458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85428713) 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, 19475 + ... + 23454.

It is an arithmetic number, because the mean of its divisors is an integer number (9659250).

Almost surely, 285428710 is an apocalyptic number.

85428710 is a deficient number, since it is larger than the sum of its proper divisors (69119290).

85428710 is a wasteful number, since it uses less digits than its factorization.

85428710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43135.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 85428710 is about 9242.7652788546. The cubic root of 85428710 is about 440.4209298300.

The spelling of 85428710 in words is "eighty-five million, four hundred twenty-eight thousand, seven hundred ten".

Divisors: 1 2 5 10 199 398 995 1990 42929 85858 214645 429290 8542871 17085742 42714355 85428710