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2011331052 = 2232241231827
BaseRepresentation
bin111011111100010…
…0111100111101100
312012011200012111200
41313320213213230
513104400043202
6531325445500
7100562013633
oct16770474754
95164605450
102011331052
11942386875
12481710890
13260913a23
141511a851a
15bb89ee1c
hex77e279ec

2011331052 has 36 divisors (see below), whose sum is σ = 5105316216. Its totient is φ = 667658880.

The previous prime is 2011331027. The next prime is 2011331053. The reversal of 2011331052 is 2501331102.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×20113310523 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2011331053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107238 + ... + 124589.

Almost surely, 22011331052 is an apocalyptic number.

It is an amenable number.

2011331052 is an abundant number, since it is smaller than the sum of its proper divisors (3093985164).

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

2011331052 is a wasteful number, since it uses less digits than its factorization.

2011331052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232078 (or 232073 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2011331052 is about 44847.8656348326. The cubic root of 2011331052 is about 1262.2959423427.

Adding to 2011331052 its reverse (2501331102), we get a palindrome (4512662154).

The spelling of 2011331052 in words is "two billion, eleven million, three hundred thirty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 241 482 723 964 1446 2169 2892 4338 8676 231827 463654 695481 927308 1390962 2086443 2781924 4172886 8345772 55870307 111740614 167610921 223481228 335221842 502832763 670443684 1005665526 2011331052