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2018413444 = 221031489431
BaseRepresentation
bin111100001001110…
…1000101110000100
312012200000000201111
41320103220232010
513113203212234
6532141334404
7101006142205
oct17023505604
95180000644
102018413444
11946383993
12483b67404
132622235a8
141520cd5ac
15bc2ed664
hex784e8b84

2018413444 has 12 divisors (see below), whose sum is σ = 3535656768. Its totient is φ = 1008225800.

The previous prime is 2018413429. The next prime is 2018413457. The reversal of 2018413444 is 4443148102.

It is a super-2 number, since 2×20184134442 = 8147985661839882272, which contains 22 as substring.

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, 240592 + ... + 248839.

It is an arithmetic number, because the mean of its divisors is an integer number (294638064).

Almost surely, 22018413444 is an apocalyptic number.

It is an amenable number.

2018413444 is a deficient number, since it is larger than the sum of its proper divisors (1517243324).

2018413444 is a wasteful number, since it uses less digits than its factorization.

2018413444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490466 (or 490464 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 2018413444 is about 44926.7564375618. The cubic root of 2018413444 is about 1263.7758249893.

The spelling of 2018413444 in words is "two billion, eighteen million, four hundred thirteen thousand, four hundred forty-four".

Divisors: 1 2 4 1031 2062 4124 489431 978862 1957724 504603361 1009206722 2018413444