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387315083145 = 35174124321013
BaseRepresentation
bin1011010001011011100…
…01110010011110001001
31101000201122122211100110
411220231301302132021
522321210130130040
6453532522224533
736661012613064
oct5505561623611
91330648584313
10387315083145
1113a2942a3641
1263093055149
132a6a6618893
1414a636158db
15a11ce84980
hex5a2dc72789

387315083145 has 96 divisors (see below), whose sum is σ = 688224974976. Its totient is φ = 185255239680.

The previous prime is 387315083143. The next prime is 387315083203. The reversal of 387315083145 is 541380513783.

It is not a de Polignac number, because 387315083145 - 21 = 387315083143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 387315083094 and 387315083103.

It is not an unprimeable number, because it can be changed into a prime (387315083143) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18421659 + ... + 18442671.

It is an arithmetic number, because the mean of its divisors is an integer number (7169010156).

Almost surely, 2387315083145 is an apocalyptic number.

It is an amenable number.

387315083145 is a deficient number, since it is larger than the sum of its proper divisors (300909891831).

387315083145 is a wasteful number, since it uses less digits than its factorization.

387315083145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21163 (or 21122 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 387315083145 in words is "three hundred eighty-seven billion, three hundred fifteen million, eighty-three thousand, one hundred forty-five".

Divisors: 1 3 5 15 17 41 43 51 85 123 129 205 215 255 615 645 697 731 1681 1763 2091 2193 3485 3655 5043 5289 8405 8815 10455 10965 21013 25215 26445 28577 29971 63039 72283 85731 89913 105065 142885 149855 216849 315195 357221 361415 428655 449565 861533 903559 1071663 1084245 1228811 1786105 2584599 2710677 3686433 4307665 4517795 5358315 6144055 12922995 13553385 14646061 15360503 18432165 35322853 37045919 43938183 46081509 73230305 76802515 105968559 111137757 176614265 185229595 219690915 230407545 529842795 555688785 600488501 629780623 1518882679 1801465503 1889341869 3002442505 3148903115 4556648037 7594413395 9007327515 9446709345 22783240185 25821005543 77463016629 129105027715 387315083145