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1206306030 = 235223917959
BaseRepresentation
bin100011111100110…
…1100010011101110
310010001212200210010
41013321230103232
54432303243110
6315411154050
741615301126
oct10771542356
93101780703
101206306030
11569a23636
12297ba5926
13162bc1867
14b62d1c86
1570d84020
hex47e6c4ee

1206306030 has 32 divisors (see below), whose sum is σ = 2896588800. Its totient is φ = 321520032.

The previous prime is 1206306019. The next prime is 1206306037. The reversal of 1206306030 is 306036021.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1206305988 and 1206306006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206306037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58191 + ... + 76149.

It is an arithmetic number, because the mean of its divisors is an integer number (90518400).

Almost surely, 21206306030 is an apocalyptic number.

1206306030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1206306030 is an abundant number, since it is smaller than the sum of its proper divisors (1690282770).

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

1206306030 is a wasteful number, since it uses less digits than its factorization.

1206306030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20208.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1206306030 is about 34731.9165897881. The cubic root of 1206306030 is about 1064.5167504931.

The spelling of 1206306030 in words is "one billion, two hundred six million, three hundred six thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 2239 4478 6717 11195 13434 17959 22390 33585 35918 53877 67170 89795 107754 179590 269385 538770 40210201 80420402 120630603 201051005 241261206 402102010 603153015 1206306030