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2111031012 = 223293600407
BaseRepresentation
bin111110111010011…
…1100011011100100
312110010021111010210
41331310330123210
513310410443022
6545250415420
7103212316236
oct17564743344
95403244123
102111031012
11993692932
124aab91570
13278480a9c
1416051c256
15c54e5a0c
hex7dd3c6e4

2111031012 has 24 divisors (see below), whose sum is σ = 4942558656. Its totient is φ = 701274208.

The previous prime is 2111031007. The next prime is 2111031029. The reversal of 2111031012 is 2101301112.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 7 ways as a sum of consecutive naturals, for example, 296688 + ... + 303719.

It is an arithmetic number, because the mean of its divisors is an integer number (205939944).

Almost surely, 22111031012 is an apocalyptic number.

It is an amenable number.

2111031012 is an abundant number, since it is smaller than the sum of its proper divisors (2831527644).

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

2111031012 is a wasteful number, since it uses less digits than its factorization.

2111031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600707 (or 600705 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2111031012 is about 45945.9575153245. The cubic root of 2111031012 is about 1282.8174859299.

Adding to 2111031012 its reverse (2101301112), we get a palindrome (4212332124).

The spelling of 2111031012 in words is "two billion, one hundred eleven million, thirty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 293 586 879 1172 1758 3516 600407 1200814 1801221 2401628 3602442 7204884 175919251 351838502 527757753 703677004 1055515506 2111031012