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68413976 = 2349117417
BaseRepresentation
bin1000001001111…
…10101000011000
311202201210022222
410010332220120
5120003221401
610442203212
71460336441
oct404765030
9152653288
1068413976
1135688484
121aab3508
1311234957
14912c2c8
156015c1b
hex413ea18

68413976 has 16 divisors (see below), whose sum is σ = 128544840. Its totient is φ = 34135360.

The previous prime is 68413973. The next prime is 68413991. The reversal of 68413976 is 67931486.

It is a super-2 number, since 2×684139762 = 9360944224257152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68413973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4781 + ... + 12636.

Almost surely, 268413976 is an apocalyptic number.

It is an amenable number.

68413976 is a deficient number, since it is larger than the sum of its proper divisors (60130864).

68413976 is a wasteful number, since it uses less digits than its factorization.

68413976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17914 (or 17910 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 68413976 is about 8271.2741461035. The cubic root of 68413976 is about 408.9921228828.

The spelling of 68413976 in words is "sixty-eight million, four hundred thirteen thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 491 982 1964 3928 17417 34834 69668 139336 8551747 17103494 34206988 68413976