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85807148 = 2274765203
BaseRepresentation
bin1010001110101…
…01000000101100
312222110110021112
411013111000230
5133431312043
612303051152
72061230420
oct507250054
9188413245
1085807148
11444881a9
12248a0ab8
1314a1467b
14b578b80
1577ee518
hex51d502c

85807148 has 24 divisors (see below), whose sum is σ = 175268352. Its totient is φ = 35991504.

The previous prime is 85807147. The next prime is 85807153. The reversal of 85807148 is 84170858.

It is not an unprimeable number, because it can be changed into a prime (85807147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31286 + ... + 33917.

It is an arithmetic number, because the mean of its divisors is an integer number (7302848).

Almost surely, 285807148 is an apocalyptic number.

It is an amenable number.

85807148 is an abundant number, since it is smaller than the sum of its proper divisors (89461204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85807148 is a wasteful number, since it uses less digits than its factorization.

85807148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65261 (or 65259 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 85807148 is about 9263.2147767392. The cubic root of 85807148 is about 441.0703075705.

The spelling of 85807148 in words is "eighty-five million, eight hundred seven thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 65203 130406 260812 456421 912842 1825684 3064541 6129082 12258164 21451787 42903574 85807148