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68655244 = 2272451973
BaseRepresentation
bin1000001011110…
…01100010001100
311210012001021211
410011321202030
5120033431434
610451304204
71462363030
oct405714214
9153161254
1068655244
1135832779
121abab064
13112ba708
1491921c0
156062464
hex417988c

68655244 has 12 divisors (see below), whose sum is σ = 137310544. Its totient is φ = 29423664.

The previous prime is 68655229. The next prime is 68655289. The reversal of 68655244 is 44255686.

68655244 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 68655197 and 68655206.

It is an unprimeable number.

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, 1225959 + ... + 1226014.

Almost surely, 268655244 is an apocalyptic number.

It is an amenable number.

68655244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68655244 is a wasteful number, since it uses less digits than its factorization.

68655244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451984 (or 2451982 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 68655244 is about 8285.8460038791. The cubic root of 68655244 is about 409.4723412367.

The spelling of 68655244 in words is "sixty-eight million, six hundred fifty-five thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 2451973 4903946 9807892 17163811 34327622 68655244