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2111214140 = 225715080101
BaseRepresentation
bin111110111010110…
…1001001000111100
312110010121210100022
41331311221020330
513310432323030
6545254351312
7103214011160
oct17565511074
95403553308
102111214140
119937a8482
124ab05b538
13278516249
14160568ca0
15c552ede5
hex7dd6923c

2111214140 has 24 divisors (see below), whose sum is σ = 5066914272. Its totient is φ = 723844800.

The previous prime is 2111214121. The next prime is 2111214187. The reversal of 2111214140 is 414121112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7539911 + ... + 7540190.

It is an arithmetic number, because the mean of its divisors is an integer number (211121428).

Almost surely, 22111214140 is an apocalyptic number.

2111214140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111214140 is an abundant number, since it is smaller than the sum of its proper divisors (2955700132).

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

2111214140 is a wasteful number, since it uses less digits than its factorization.

2111214140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15080117 (or 15080115 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 2111214140 is about 45947.9503351346. The cubic root of 2111214140 is about 1282.8545788648.

Adding to 2111214140 its reverse (414121112), we get a palindrome (2525335252).

The spelling of 2111214140 in words is "two billion, one hundred eleven million, two hundred fourteen thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 15080101 30160202 60320404 75400505 105560707 150801010 211121414 301602020 422242828 527803535 1055607070 2111214140