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2018371834 = 21554164937
BaseRepresentation
bin111100001001101…
…1110100011111010
312012122220220122101
41320103132203322
513113200344314
6532140414014
7101005606663
oct17023364372
95178826571
102018371834
119463556a6
12483b4730a
1326220a67b
141520bc36a
15bc2e1174
hex784de8fa

2018371834 has 8 divisors (see below), whose sum is σ = 3027799188. Its totient is φ = 1009105440.

The previous prime is 2018371819. The next prime is 2018371837. The reversal of 2018371834 is 4381738102.

It can be written as a sum of positive squares in 2 ways, for example, as 1756029025 + 262342809 = 41905^2 + 16197^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2018371793 and 2018371802.

It is not an unprimeable number, because it can be changed into a prime (2018371837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1387 + ... + 63550.

Almost surely, 22018371834 is an apocalyptic number.

2018371834 is a deficient number, since it is larger than the sum of its proper divisors (1009427354).

2018371834 is a wasteful number, since it uses less digits than its factorization.

2018371834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80480.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 2018371834 is about 44926.2933481052. The cubic root of 2018371834 is about 1263.7671405985.

The spelling of 2018371834 in words is "two billion, eighteen million, three hundred seventy-one thousand, eight hundred thirty-four".

Divisors: 1 2 15541 31082 64937 129874 1009185917 2018371834