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68089926488 = 2310184269711
BaseRepresentation
bin111111011010011110…
…011101001101011000
320111202022012122121012
4333122132131031120
52103422010121423
651140255233052
74630221553133
oct773236351530
9214668178535
1068089926488
1126970a96621
1211243218788
1365617c793c
14341d08921a
151b87ab3078
hexfda79d358

68089926488 has 16 divisors (see below), whose sum is σ = 128932659360. Its totient is φ = 33707884000.

The previous prime is 68089926469. The next prime is 68089926491. The reversal of 68089926488 is 88462998086.

It is a super-3 number, since 3×680899264883 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42134048 + ... + 42135663.

It is an arithmetic number, because the mean of its divisors is an integer number (8058291210).

Almost surely, 268089926488 is an apocalyptic number.

It is an amenable number.

68089926488 is a deficient number, since it is larger than the sum of its proper divisors (60842732872).

68089926488 is a wasteful number, since it uses less digits than its factorization.

68089926488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84269818 (or 84269814 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 68.

The spelling of 68089926488 in words is "sixty-eight billion, eighty-nine million, nine hundred twenty-six thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 101 202 404 808 84269711 168539422 337078844 674157688 8511240811 17022481622 34044963244 68089926488