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2130214188 = 223177517849
BaseRepresentation
bin111111011111000…
…0111110100101100
312111110101002111210
41332332013310230
513330313323223
6551213514420
7103534343664
oct17676076454
95443332453
102130214188
119a34a54a3
124b54a2a10
1327c43948b
14162cb31a4
15c7034893
hex7ef87d2c

2130214188 has 12 divisors (see below), whose sum is σ = 4970499800. Its totient is φ = 710071392.

The previous prime is 2130214139. The next prime is 2130214193. The reversal of 2130214188 is 8814120312.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88758913 + ... + 88758936.

Almost surely, 22130214188 is an apocalyptic number.

It is an amenable number.

2130214188 is an abundant number, since it is smaller than the sum of its proper divisors (2840285612).

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

2130214188 is a wasteful number, since it uses less digits than its factorization.

2130214188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177517856 (or 177517854 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 2130214188 is about 46154.2434452131. The cubic root of 2130214188 is about 1286.6914772645.

The spelling of 2130214188 in words is "two billion, one hundred thirty million, two hundred fourteen thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 177517849 355035698 532553547 710071396 1065107094 2130214188