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64262026442 = 2193794462021
BaseRepresentation
bin111011110110010100…
…001011010011001010
320010212112100011220102
4323312110023103022
52023102034321232
645304354125402
74433321132525
oct736624132312
9203775304812
1064262026442
1125287269669
1210555280862
1360a1742323
143178933bbc
151a119d5662
hexef650b4ca

64262026442 has 16 divisors (see below), whose sum is σ = 101734101600. Its totient is φ = 30359584080.

The previous prime is 64262026429. The next prime is 64262026447. The reversal of 64262026442 is 24462026246.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 64262026396 and 64262026405.

It is not an unprimeable number, because it can be changed into a prime (64262026447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2216609 + ... + 2245412.

It is an arithmetic number, because the mean of its divisors is an integer number (6358381350).

Almost surely, 264262026442 is an apocalyptic number.

64262026442 is a deficient number, since it is larger than the sum of its proper divisors (37472075158).

64262026442 is a wasteful number, since it uses less digits than its factorization.

64262026442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462421.

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 64262026442 in words is "sixty-four billion, two hundred sixty-two million, twenty-six thousand, four hundred forty-two".

Divisors: 1 2 19 38 379 758 7201 14402 4462021 8924042 84778399 169556798 1691105959 3382211918 32131013221 64262026442