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12585418090 = 257179791687
BaseRepresentation
bin10111011100010011…
…00011110101101010
31012111002200110222221
423232021203311222
5201233331334330
65440501104254
7623610201010
oct135611436552
935432613887
1012585418090
11537915a983
1225329b808a
13125752616b
1487568a8b0
154d9d5cb7a
hex2ee263d6a

12585418090 has 16 divisors (see below), whose sum is σ = 25890003072. Its totient is φ = 4315000464.

The previous prime is 12585418081. The next prime is 12585418117. The reversal of 12585418090 is 9081458521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89895774 + ... + 89895913.

It is an arithmetic number, because the mean of its divisors is an integer number (1618125192).

Almost surely, 212585418090 is an apocalyptic number.

12585418090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12585418090 is an abundant number, since it is smaller than the sum of its proper divisors (13304584982).

12585418090 is a wasteful number, since it uses less digits than its factorization.

12585418090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179791701.

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 12585418090 in words is "twelve billion, five hundred eighty-five million, four hundred eighteen thousand, ninety".

Divisors: 1 2 5 7 10 14 35 70 179791687 359583374 898958435 1258541809 1797916870 2517083618 6292709045 12585418090