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919475073442 = 217192308161667
BaseRepresentation
bin11010110000101001111…
…11000011000110100010
310020220022210120022121201
431120110333003012202
5110031041104322232
61542222341511414
7123300310112212
oct15302477030642
93226283508551
10919475073442
11324a46787812
1212a24a41256a
1368924491cc3
1432707aa8242
1518db7158be7
hexd614fc31a2

919475073442 has 32 divisors (see below), whose sum is σ = 1537294438080. Its totient is φ = 409896368640.

The previous prime is 919475073401. The next prime is 919475073479. The reversal of 919475073442 is 244370574919.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14879493 + ... + 14941159.

It is an arithmetic number, because the mean of its divisors is an integer number (48040451190).

Almost surely, 2919475073442 is an apocalyptic number.

919475073442 is a deficient number, since it is larger than the sum of its proper divisors (617819364638).

919475073442 is a wasteful number, since it uses less digits than its factorization.

919475073442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84786.

The product of its (nonzero) digits is 7620480, while the sum is 55.

The spelling of 919475073442 in words is "nine hundred nineteen billion, four hundred seventy-five million, seventy-three thousand, four hundred forty-two".

Divisors: 1 2 17 19 34 38 323 646 23081 46162 61667 123334 392377 438539 784754 877078 1048339 1171673 2096678 2343346 7455163 14910326 19918441 39836882 1423336027 2846672054 24196712459 27043384513 48393424918 54086769026 459737536721 919475073442