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867168363428 = 221921731128109
BaseRepresentation
bin11001001111001110100…
…00110010001110100100
310001220022110021010201122
430213213100302032210
5103201430100112203
61502212135313112
7116436145320323
oct14474720621644
93056273233648
10867168363428
11304844a30354
12120090b1b798
1363a0986ac13
142dd84c800ba
1517855019538
hexc9e74323a4

867168363428 has 12 divisors (see below), whose sum is σ = 1517553877980. Its totient is φ = 433581541152.

The previous prime is 867168363419. The next prime is 867168363437. The reversal of 867168363428 is 824363861768.

It is an interprime number because it is at equal distance from previous prime (867168363419) and next prime (867168363437).

It can be written as a sum of positive squares in 2 ways, for example, as 158537756224 + 708630607204 = 398168^2 + 841802^2 .

It is a super-3 number, since 3×8671683634283 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 3 ways as a sum of consecutive naturals, for example, 204638 + ... + 1332746.

It is an arithmetic number, because the mean of its divisors is an integer number (126462823165).

Almost surely, 2867168363428 is an apocalyptic number.

It is an amenable number.

867168363428 is a deficient number, since it is larger than the sum of its proper divisors (650385514552).

867168363428 is a wasteful number, since it uses less digits than its factorization.

867168363428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320286 (or 1320284 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 62.

The spelling of 867168363428 in words is "eight hundred sixty-seven billion, one hundred sixty-eight million, three hundred sixty-three thousand, four hundred twenty-eight".

Divisors: 1 2 4 192173 384346 768692 1128109 2256218 4512436 216792090857 433584181714 867168363428