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2111200012 = 221760151659
BaseRepresentation
bin111110111010110…
…0101101100001100
312110010121001222001
41331311211230030
513310431400022
6545254202044
7103213622035
oct17565455414
95403531861
102111200012
119937988a9
124ab053324
1327850c99c
14160563a8c
15c552ab27
hex7dd65b0c

2111200012 has 24 divisors (see below), whose sum is σ = 3918514320. Its totient is φ = 991833600.

The previous prime is 2111200001. The next prime is 2111200019. The reversal of 2111200012 is 2100021112.

It is not an unprimeable number, because it can be changed into a prime (2111200019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15039 + ... + 66697.

It is an arithmetic number, because the mean of its divisors is an integer number (163271430).

Almost surely, 22111200012 is an apocalyptic number.

It is an amenable number.

2111200012 is a deficient number, since it is larger than the sum of its proper divisors (1807314308).

2111200012 is a wasteful number, since it uses less digits than its factorization.

2111200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52281 (or 52279 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2111200012 is about 45947.7965957020. The cubic root of 2111200012 is about 1282.8517172871.

Adding to 2111200012 its reverse (2100021112), we get a palindrome (4211221124).

The spelling of 2111200012 in words is "two billion, one hundred eleven million, two hundred thousand, twelve".

Divisors: 1 2 4 17 34 68 601 1202 2404 10217 20434 40868 51659 103318 206636 878203 1756406 3512812 31047059 62094118 124188236 527800003 1055600006 2111200012