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7868001345 = 3523313759337
BaseRepresentation
bin1110101001111100…
…00010110001000001
3202022100000212210020
413110332002301001
5112103202020340
63340422324053
7365655623301
oct72476026101
922270025706
107868001345
113378310956
121636b89629
139850a79c9
14548d47601
15310b249d0
hex1d4f82c41

7868001345 has 128 divisors (see below), whose sum is σ = 14204436480. Its totient is φ = 3704279040.

The previous prime is 7868001341. The next prime is 7868001359. The reversal of 7868001345 is 5431008687.

It is not a de Polignac number, because 7868001345 - 22 = 7868001341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7868001297 and 7868001306.

It is not an unprimeable number, because it can be changed into a prime (7868001341) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23347017 + ... + 23347353.

It is an arithmetic number, because the mean of its divisors is an integer number (110972160).

Almost surely, 27868001345 is an apocalyptic number.

It is an amenable number.

7868001345 is a deficient number, since it is larger than the sum of its proper divisors (6336435135).

7868001345 is a wasteful number, since it uses less digits than its factorization.

7868001345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 7868001345 is about 88701.7550277332. The cubic root of 7868001345 is about 1988.9390525749.

The spelling of 7868001345 in words is "seven billion, eight hundred sixty-eight million, one thousand, three hundred forty-five".

Divisors: 1 3 5 15 23 31 37 59 69 93 111 115 155 177 185 295 337 345 465 555 713 851 885 1011 1147 1357 1685 1829 2139 2183 2553 3441 3565 4071 4255 5055 5487 5735 6549 6785 7751 9145 10447 10695 10915 12469 12765 17205 19883 20355 23253 26381 27435 31341 32745 37407 38755 42067 50209 52235 59649 62345 67673 79143 99415 116265 126201 131905 150627 156705 187035 203019 210335 240281 251045 286787 298245 338365 386539 395715 457309 616373 631005 720843 735671 753135 860361 1015095 1159617 1201405 1371927 1433935 1556479 1849119 1932695 2207013 2286545 3081865 3604215 3678355 4301805 4669437 5798085 6859635 7782395 8890397 9245595 11035065 14176579 16920433 22805801 23347185 26671191 42529737 44451985 50761299 68417403 70882895 84602165 114029005 133355955 212648685 253806495 342087015 524533423 1573600269 2622667115 7868001345