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86670692 = 22178914321
BaseRepresentation
bin1010010101001…
…11110101100100
320001002022211122
411022213311210
5134141430232
612333353112
72101455143
oct512476544
9201068748
1086670692
1144a17a79
1225038798
1314c57744
14b72175a
157920312
hex52a7d64

86670692 has 24 divisors (see below), whose sum is σ = 162411480. Its totient is φ = 40325120.

The previous prime is 86670677. The next prime is 86670697. The reversal of 86670692 is 29607668.

It can be written as a sum of positive squares in 4 ways, for example, as 106276 + 86564416 = 326^2 + 9304^2 .

It is not an unprimeable number, because it can be changed into a prime (86670697) 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, 1109 + ... + 13212.

It is an arithmetic number, because the mean of its divisors is an integer number (6767145).

Almost surely, 286670692 is an apocalyptic number.

It is an amenable number.

86670692 is a deficient number, since it is larger than the sum of its proper divisors (75740788).

86670692 is a wasteful number, since it uses less digits than its factorization.

86670692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14431 (or 14429 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 86670692 is about 9309.7095550828. The cubic root of 86670692 is about 442.5449827126.

The spelling of 86670692 in words is "eighty-six million, six hundred seventy thousand, six hundred ninety-two".

Divisors: 1 2 4 17 34 68 89 178 356 1513 3026 6052 14321 28642 57284 243457 486914 973828 1274569 2549138 5098276 21667673 43335346 86670692