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68698528 = 25191031097
BaseRepresentation
bin1000001100001…
…00000110100000
311210021020122221
410012010012200
5120041323103
610452240424
71462633153
oct406040640
9153236587
1068698528
1135862248
121b010114
1311304322
1491a3c9a
1560701bd
hex41841a0

68698528 has 48 divisors (see below), whose sum is σ = 143881920. Its totient is φ = 32196096.

The previous prime is 68698499. The next prime is 68698541. The reversal of 68698528 is 82589686.

It is an unprimeable number.

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, 62076 + ... + 63172.

It is an arithmetic number, because the mean of its divisors is an integer number (2997540).

Almost surely, 268698528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68698528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71940960).

68698528 is an abundant number, since it is smaller than the sum of its proper divisors (75183392).

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

68698528 is a wasteful number, since it uses less digits than its factorization.

68698528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1221 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 52.

The square root of 68698528 is about 8288.4575163296. The cubic root of 68698528 is about 409.5583743710.

The spelling of 68698528 in words is "sixty-eight million, six hundred ninety-eight thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 19 32 38 76 103 152 206 304 412 608 824 1097 1648 1957 2194 3296 3914 4388 7828 8776 15656 17552 20843 31312 35104 41686 62624 83372 112991 166744 225982 333488 451964 666976 903928 1807856 2146829 3615712 4293658 8587316 17174632 34349264 68698528