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68452641 = 332535283
BaseRepresentation
bin1000001010010…
…00000100100001
311202210202101000
410011020010201
5120010441031
610443102213
71460560245
oct405100441
9152722330
1068452641
1135704534
121ab11969
131124942a
14913c425
1560223e6
hex4148121

68452641 has 8 divisors (see below), whose sum is σ = 101411360. Its totient is φ = 45635076.

The previous prime is 68452639. The next prime is 68452651. The reversal of 68452641 is 14625486.

68452641 is a `hidden beast` number, since 6 + 8 + 4 + 5 + 2 + 641 = 666.

It is not a de Polignac number, because 68452641 - 21 = 68452639 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68452596 and 68452605.

It is not an unprimeable number, because it can be changed into a prime (68452621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267615 + ... + 1267668.

It is an arithmetic number, because the mean of its divisors is an integer number (12676420).

Almost surely, 268452641 is an apocalyptic number.

It is an amenable number.

68452641 is a deficient number, since it is larger than the sum of its proper divisors (32958719).

68452641 is a wasteful number, since it uses less digits than its factorization.

68452641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535292 (or 2535286 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 68452641 is about 8273.6111221159. The cubic root of 68452641 is about 409.0691573485.

The spelling of 68452641 in words is "sixty-eight million, four hundred fifty-two thousand, six hundred forty-one".

Divisors: 1 3 9 27 2535283 7605849 22817547 68452641