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67864148382 = 2316767728691
BaseRepresentation
bin111111001101000001…
…001011100110011110
320111011120100221021010
4333031001023212132
52102441210222012
651102032120050
74621510513002
oct771501134636
9214146327233
1067864148382
11268655a7148
121119b696026
136526ab6224
1433db0b6702
151b72d65c3c
hexfcd04b99e

67864148382 has 16 divisors (see below), whose sum is σ = 136541043072. Its totient is φ = 22485925080.

The previous prime is 67864148353. The next prime is 67864148383. The reversal of 67864148382 is 28384146876.

It is a super-2 number, since 2×678641483822 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67864148383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33863344 + ... + 33865347.

It is an arithmetic number, because the mean of its divisors is an integer number (8533815192).

Almost surely, 267864148382 is an apocalyptic number.

67864148382 is an abundant number, since it is smaller than the sum of its proper divisors (68676894690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67864148382 is a wasteful number, since it uses less digits than its factorization.

67864148382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67728863.

The product of its digits is 12386304, while the sum is 57.

The spelling of 67864148382 in words is "sixty-seven billion, eight hundred sixty-four million, one hundred forty-eight thousand, three hundred eighty-two".

Divisors: 1 2 3 6 167 334 501 1002 67728691 135457382 203186073 406372146 11310691397 22621382794 33932074191 67864148382