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68024220 = 223511103067
BaseRepresentation
bin1000000110111…
…11011110011100
311201222222200120
410003133132130
5114403233340
610425554540
71454124225
oct403373634
9151888616
1068024220
1135441670
121a945a50
1311129424
14906a24c
155e8a4d0
hex40df79c

68024220 has 48 divisors (see below), whose sum is σ = 207785088. Its totient is φ = 16490560.

The previous prime is 68024219. The next prime is 68024233. The reversal of 68024220 is 2242086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50874 + ... + 52193.

It is an arithmetic number, because the mean of its divisors is an integer number (4328856).

Almost surely, 268024220 is an apocalyptic number.

68024220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68024220 is an abundant number, since it is smaller than the sum of its proper divisors (139760868).

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

68024220 is a wasteful number, since it uses less digits than its factorization.

68024220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103090 (or 103088 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 68024220 is about 8247.6796737022. The cubic root of 68024220 is about 408.2139640898.

The spelling of 68024220 in words is "sixty-eight million, twenty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 103067 206134 309201 412268 515335 618402 1030670 1133737 1236804 1546005 2061340 2267474 3092010 3401211 4534948 5668685 6184020 6802422 11337370 13604844 17006055 22674740 34012110 68024220