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68656548 = 22313941161
BaseRepresentation
bin1000001011110…
…01110110100100
311210012010002010
410011321312210
5120034002143
610451314220
71462366602
oct405716644
9153163063
1068656548
1135833754
121abab970
13112bb19c
149192872
156062a33
hex4179da4

68656548 has 24 divisors (see below), whose sum is σ = 161355040. Its totient is φ = 22720320.

The previous prime is 68656547. The next prime is 68656561. The reversal of 68656548 is 84565686.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68656497 and 68656506.

It is not an unprimeable number, because it can be changed into a prime (68656547) 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, 18913 + ... + 22248.

Almost surely, 268656548 is an apocalyptic number.

It is an amenable number.

68656548 is an abundant number, since it is smaller than the sum of its proper divisors (92698492).

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

68656548 is a wasteful number, since it uses less digits than its factorization.

68656548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41307 (or 41305 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 48.

The square root of 68656548 is about 8285.9246919098. The cubic root of 68656548 is about 409.4749336512.

The spelling of 68656548 in words is "sixty-eight million, six hundred fifty-six thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 139 278 417 556 834 1668 41161 82322 123483 164644 246966 493932 5721379 11442758 17164137 22885516 34328274 68656548