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1814065930 = 25181406593
BaseRepresentation
bin110110000100000…
…0111001100001010
311200102111002122001
41230020013030022
512203400102210
6500001421214
762645206645
oct15410071412
94612432561
101814065930
11850aa1646
1242763a80a
1322baa64c1
14132cd8a5c
15a93d603a
hex6c20730a

1814065930 has 8 divisors (see below), whose sum is σ = 3265318692. Its totient is φ = 725626368.

The previous prime is 1814065919. The next prime is 1814065961. The reversal of 1814065930 is 395604181.

It can be written as a sum of positive squares in 2 ways, for example, as 1722997081 + 91068849 = 41509^2 + 9543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1814065930.

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, 90703287 + ... + 90703306.

Almost surely, 21814065930 is an apocalyptic number.

1814065930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1814065930 is a deficient number, since it is larger than the sum of its proper divisors (1451252762).

1814065930 is a wasteful number, since it uses less digits than its factorization.

1814065930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181406600.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1814065930 is about 42591.8528594378. The cubic root of 1814065930 is about 1219.6007674255.

The spelling of 1814065930 in words is "one billion, eight hundred fourteen million, sixty-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 181406593 362813186 907032965 1814065930