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64508316234 = 2313986389627
BaseRepresentation
bin111100000100111111…
…101100101001001010
320011111200202222222120
4330010333230221022
52024103112104414
645345033032110
74442401432545
oct740477545112
9204450688876
1064508316234
11253a329884a
1210603855636
13611078602b
14319d52585c
151a284352a9
hexf04feca4a

64508316234 has 32 divisors (see below), whose sum is σ = 130096834560. Its totient is φ = 21323100912.

The previous prime is 64508316227. The next prime is 64508316239. The reversal of 64508316234 is 43261380546.

It is a super-2 number, since 2×645083162342 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64508316239) 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 15 ways as a sum of consecutive naturals, for example, 674929 + ... + 764555.

It is an arithmetic number, because the mean of its divisors is an integer number (4065526080).

Almost surely, 264508316234 is an apocalyptic number.

64508316234 is an abundant number, since it is smaller than the sum of its proper divisors (65588518326).

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

64508316234 is a wasteful number, since it uses less digits than its factorization.

64508316234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90634.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 64508316234 in words is "sixty-four billion, five hundred eight million, three hundred sixteen thousand, two hundred thirty-four".

Divisors: 1 2 3 6 139 278 417 834 863 1726 2589 5178 89627 119957 179254 239914 268881 359871 537762 719742 12458153 24916306 37374459 74748918 77348101 154696202 232044303 464088606 10751386039 21502772078 32254158117 64508316234