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68537000 = 235379791
BaseRepresentation
bin1000001010111…
…00101010101000
311202222001002102
410011130222220
5120021141000
610444552532
71461361220
oct405345250
9152861072
1068537000
1135761954
121ab52748
131127894c
149161080
15603c3d5
hex415caa8

68537000 has 64 divisors (see below), whose sum is σ = 183306240. Its totient is φ = 23496000.

The previous prime is 68536997. The next prime is 68537023. The reversal of 68537000 is 73586.

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 15 ways as a sum of consecutive naturals, for example, 2105 + ... + 11895.

It is an arithmetic number, because the mean of its divisors is an integer number (2864160).

Almost surely, 268537000 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 68537000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91653120).

68537000 is an abundant number, since it is smaller than the sum of its proper divisors (114769240).

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

68537000 is a wasteful number, since it uses less digits than its factorization.

68537000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9819 (or 9805 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 68537000 is about 8278.7076286097. The cubic root of 68537000 is about 409.2371299225.

The spelling of 68537000 in words is "sixty-eight million, five hundred thirty-seven thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 125 140 175 200 250 280 350 500 700 875 1000 1400 1750 3500 7000 9791 19582 39164 48955 68537 78328 97910 137074 195820 244775 274148 342685 391640 489550 548296 685370 979100 1223875 1370740 1713425 1958200 2447750 2741480 3426850 4895500 6853700 8567125 9791000 13707400 17134250 34268500 68537000