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68132121 = 397234131
BaseRepresentation
bin1000000111110…
…01110100011001
311202012110200220
410003321310121
5114420211441
610432150253
71455053631
oct403716431
9152173626
1068132121
1135505742
121a998389
1311166585
1490976c1
155eac466
hex40f9d19

68132121 has 8 divisors (see below), whose sum is σ = 91779744. Its totient is φ = 44952960.

The previous prime is 68132087. The next prime is 68132147. The reversal of 68132121 is 12123186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68132121 - 27 = 68131993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68132091 and 68132100.

It is not an unprimeable number, because it can be changed into a prime (68132021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116775 + ... + 117356.

It is an arithmetic number, because the mean of its divisors is an integer number (11472468).

Almost surely, 268132121 is an apocalyptic number.

It is an amenable number.

68132121 is a deficient number, since it is larger than the sum of its proper divisors (23647623).

68132121 is a wasteful number, since it uses less digits than its factorization.

68132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234231.

The product of its digits is 576, while the sum is 24.

The square root of 68132121 is about 8254.2183760790. The cubic root of 68132121 is about 408.4296883630.

The spelling of 68132121 in words is "sixty-eight million, one hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 3 97 291 234131 702393 22710707 68132121