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389348025 = 352111722371
BaseRepresentation
bin10111001101001…
…111101010111001
31000010121221002020
4113031033222321
51244133114100
6102345025053
712435255303
oct2715175271
91003557066
10389348025
1118a85aa30
12aa485189
1362882061
14399d0973
15242ac5a0
hex1734fab9

389348025 has 144 divisors (see below), whose sum is σ = 789378048. Its totient is φ = 167552000.

The previous prime is 389348023. The next prime is 389348027. The reversal of 389348025 is 520843983.

It is an interprime number because it is at equal distance from previous prime (389348023) and next prime (389348027).

It is not a de Polignac number, because 389348025 - 21 = 389348023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389348023) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5483740 + ... + 5483810.

It is an arithmetic number, because the mean of its divisors is an integer number (5481792).

Almost surely, 2389348025 is an apocalyptic number.

It is an amenable number.

389348025 is an abundant number, since it is smaller than the sum of its proper divisors (400030023).

389348025 is a wasteful number, since it uses less digits than its factorization.

389348025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 389348025 is about 19731.9037348148. The cubic root of 389348025 is about 730.2070001574.

The spelling of 389348025 in words is "three hundred eighty-nine million, three hundred forty-eight thousand, twenty-five".

Divisors: 1 3 5 11 15 17 23 25 33 51 55 69 71 75 85 115 165 187 213 253 255 275 289 345 355 391 425 561 575 759 781 825 867 935 1065 1173 1207 1265 1275 1445 1633 1725 1775 1955 2343 2805 3179 3621 3795 3905 4301 4335 4675 4899 5325 5865 6035 6325 6647 7225 8165 9537 9775 11715 12903 13277 14025 15895 17963 18105 18975 19525 19941 20519 21505 21675 24495 27761 29325 30175 33235 39831 40825 47685 53889 58575 61557 64515 66385 73117 79475 83283 89815 90525 99705 102595 107525 122475 138805 166175 199155 219351 225709 238425 269445 305371 307785 322575 331925 365585 416415 449075 471937 498525 512975 677127 694025 916113 995775 1096755 1128545 1347225 1415811 1526855 1538925 1827925 2082075 2359685 3385635 4580565 5191307 5483775 5642725 7079055 7634275 11798425 15573921 16928175 22902825 25956535 35395275 77869605 129782675 389348025