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318628080290 = 251397142717707
BaseRepresentation
bin1001010001011111011…
…01101010101010100010
31010110102201221112221202
410220233231222222202
520210022242032130
6402213053321202
732006620665332
oct4505755525242
91113381845852
10318628080290
11113147276783
1251903a96202
132407b20a020
14115c91450c2
15844cc80145
hex4a2fb6aaa2

318628080290 has 64 divisors (see below), whose sum is σ = 624488344704. Its totient is φ = 116346267648.

The previous prime is 318628080289. The next prime is 318628080293. The reversal of 318628080290 is 92080826813.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (318628080293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17985617 + ... + 18003323.

It is an arithmetic number, because the mean of its divisors is an integer number (9757630386).

Almost surely, 2318628080290 is an apocalyptic number.

318628080290 is a deficient number, since it is larger than the sum of its proper divisors (305860264414).

318628080290 is a wasteful number, since it uses less digits than its factorization.

318628080290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 318628080290 in words is "three hundred eighteen billion, six hundred twenty-eight million, eighty thousand, two hundred ninety".

Divisors: 1 2 5 10 13 26 65 97 130 194 485 970 1261 1427 2522 2854 6305 7135 12610 14270 17707 18551 35414 37102 88535 92755 138419 177070 185510 230191 276838 460382 692095 1150955 1384190 1717579 1799447 2301910 3435158 3598894 8587895 8997235 17175790 17994470 22328527 25267889 44657054 50535778 111642635 126339445 223285270 252678890 328482557 656965114 1642412785 2450985233 3284825570 4901970466 12254926165 24509852330 31862808029 63725616058 159314040145 318628080290