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68498338964 = 22115941776317
BaseRepresentation
bin111111110010110100…
…011011010010010100
320112210202201011012012
4333302310123102110
52110241033321324
651245005043352
74643311163066
oct776264332224
9215722634165
1068498338964
11270605879a0
1211337b56558
1365c82c3323
14345b3dd736
151bad88920e
hexff2d1b494

68498338964 has 48 divisors (see below), whose sum is σ = 133038884160. Its totient is φ = 30595714560.

The previous prime is 68498338963. The next prime is 68498338967. The reversal of 68498338964 is 46983389486.

It is a junction number, because it is equal to n+sod(n) for n = 68498338894 and 68498338903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68498338963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10840334 + ... + 10846650.

It is an arithmetic number, because the mean of its divisors is an integer number (2771643420).

Almost surely, 268498338964 is an apocalyptic number.

It is an amenable number.

68498338964 is a deficient number, since it is larger than the sum of its proper divisors (64540545196).

68498338964 is a wasteful number, since it uses less digits than its factorization.

68498338964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10568 (or 10566 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 68.

The spelling of 68498338964 in words is "sixty-eight billion, four hundred ninety-eight million, three hundred thirty-eight thousand, nine hundred sixty-four".

Divisors: 1 2 4 11 22 44 59 118 236 649 1298 2596 4177 6317 8354 12634 16708 25268 45947 69487 91894 138974 183788 246443 277948 372703 492886 745406 985772 1490812 2710873 4099733 5421746 8199466 10843492 16398932 26386109 52772218 105544436 290247199 580494398 1160988796 1556780431 3113560862 6227121724 17124584741 34249169482 68498338964