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2068814680 = 23564180687
BaseRepresentation
bin111101101001111…
…1001101101011000
312100011211200012221
41323103321231120
513214104032210
6541141513424
7102160430452
oct17323715530
95304750187
102068814680
119718790a9
12498a12874
1326c7bc4ca
14158a8d2d2
15c19571da
hex7b4f9b58

2068814680 has 32 divisors (see below), whose sum is σ = 4662152640. Its totient is φ = 826224640.

The previous prime is 2068814647. The next prime is 2068814681. The reversal of 2068814680 is 864188602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068814681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14704 + ... + 65983.

It is an arithmetic number, because the mean of its divisors is an integer number (145692270).

Almost surely, 22068814680 is an apocalyptic number.

2068814680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2068814680 is an abundant number, since it is smaller than the sum of its proper divisors (2593337960).

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

2068814680 is a wasteful number, since it uses less digits than its factorization.

2068814680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81339 (or 81335 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 2068814680 is about 45484.2245179579. The cubic root of 2068814680 is about 1274.2085935780.

The spelling of 2068814680 in words is "two billion, sixty-eight million, eight hundred fourteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 641 1282 2564 3205 5128 6410 12820 25640 80687 161374 322748 403435 645496 806870 1613740 3227480 51720367 103440734 206881468 258601835 413762936 517203670 1034407340 2068814680