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18245085170 = 2513375371569
BaseRepresentation
bin10000111111011111…
…011110011111110010
31202002112100100200012
4100333133132133302
5244331220211140
612214235254522
71214062444064
oct207737363762
952075310605
1018245085170
117812969594
1236522aa442
131949c41bb0
14c511c7734
1571bb6b265
hex43f7de7f2

18245085170 has 64 divisors (see below), whose sum is σ = 37009133280. Its totient is φ = 6430814208.

The previous prime is 18245085167. The next prime is 18245085211. The reversal of 18245085170 is 7158054281.

It can be written as a sum of positive squares in 16 ways, for example, as 6217795609 + 12027289561 = 78853^2 + 109669^2 .

It is a super-3 number, since 3×182450851703 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219146 + ... + 290714.

Almost surely, 218245085170 is an apocalyptic number.

18245085170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18245085170 is an abundant number, since it is smaller than the sum of its proper divisors (18764048110).

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

18245085170 is a wasteful number, since it uses less digits than its factorization.

18245085170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71679.

The product of its (nonzero) digits is 89600, while the sum is 41.

The spelling of 18245085170 in words is "eighteen billion, two hundred forty-five million, eighty-five thousand, one hundred seventy".

Divisors: 1 2 5 10 13 26 37 53 65 74 106 130 185 265 370 481 530 689 962 1378 1961 2405 3445 3922 4810 6890 9805 19610 25493 50986 71569 127465 143138 254930 357845 715690 930397 1860794 2648053 3793157 4651985 5296106 7586314 9303970 13240265 18965785 26480530 34424689 37931570 49311041 68849378 98622082 140346809 172123445 246555205 280693618 344246890 493110410 701734045 1403468090 1824508517 3649017034 9122542585 18245085170