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2011031304 = 2334113115601
BaseRepresentation
bin111011111011101…
…1110011100001000
312012011002222022220
41313313132130020
513104311000204
6531315214040
7100556325012
oct16767363410
95164088286
102011031304
119421a1647
124815a7320
1326083a469
1415112b1b2
15bb8411d9
hex77dde708

2011031304 has 64 divisors (see below), whose sum is σ = 5189849280. Its totient is φ = 648960000.

The previous prime is 2011031299. The next prime is 2011031317. The reversal of 2011031304 is 4031301102.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 121104 + ... + 136704.

It is an arithmetic number, because the mean of its divisors is an integer number (81091395).

Almost surely, 22011031304 is an apocalyptic number.

2011031304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011031304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2594924640).

2011031304 is an abundant number, since it is smaller than the sum of its proper divisors (3178817976).

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

2011031304 is a wasteful number, since it uses less digits than its factorization.

2011031304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15782 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2011031304 is about 44844.5236790402. The cubic root of 2011031304 is about 1262.2332327121.

Adding to 2011031304 its reverse (4031301102), we get a palindrome (6042332406).

The spelling of 2011031304 in words is "two billion, eleven million, thirty-one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 41 82 123 131 164 246 262 328 393 492 524 786 984 1048 1572 3144 5371 10742 15601 16113 21484 31202 32226 42968 46803 62404 64452 93606 124808 128904 187212 374424 639641 1279282 1918923 2043731 2558564 3837846 4087462 5117128 6131193 7675692 8174924 12262386 15351384 16349848 24524772 49049544 83792971 167585942 251378913 335171884 502757826 670343768 1005515652 2011031304