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68673544132 = 22491109331991
BaseRepresentation
bin111111111101010000…
…110001111111000100
320120020222101111111111
4333331100301333010
52111120411403012
651314224214404
74650536331244
oct777520617704
9216228344444
1068673544132
1127140475156
121138676a404
1366256a891b
1434767a9b24
151bbde46ba7
hexffd431fc4

68673544132 has 24 divisors (see below), whose sum is σ = 120537410112. Its totient is φ = 34234418400.

The previous prime is 68673544123. The next prime is 68673544237. The reversal of 68673544132 is 23144537686.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2130657 + ... + 2162647.

It is an arithmetic number, because the mean of its divisors is an integer number (5022392088).

Almost surely, 268673544132 is an apocalyptic number.

It is an amenable number.

68673544132 is a deficient number, since it is larger than the sum of its proper divisors (51863865980).

68673544132 is a wasteful number, since it uses less digits than its factorization.

68673544132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33579 (or 33577 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 49.

The spelling of 68673544132 in words is "sixty-eight billion, six hundred seventy-three million, five hundred forty-four thousand, one hundred thirty-two".

Divisors: 1 2 4 491 982 1093 1964 2186 4372 31991 63982 127964 536663 1073326 2146652 15707581 31415162 34966163 62830324 69932326 139864652 17168386033 34336772066 68673544132