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2018772742 = 27985714629
BaseRepresentation
bin111100001010100…
…0000011100000110
312012200200021120211
41320111000130012
513113301211432
6532153150034
7101012166550
oct17025003406
95180607524
102018772742
119465a9928
124840bb31a
1326231acac
141521844d0
15bc36ed47
hex78540706

2018772742 has 16 divisors (see below), whose sum is σ = 3461340960. Its totient is φ = 865041408.

The previous prime is 2018772713. The next prime is 2018772757. The reversal of 2018772742 is 2472778102.

It is a super-4 number, since 4×20187727424 (a number of 38 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2018772695 and 2018772704.

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, 130684 + ... + 145312.

It is an arithmetic number, because the mean of its divisors is an integer number (216333810).

Almost surely, 22018772742 is an apocalyptic number.

2018772742 is a deficient number, since it is larger than the sum of its proper divisors (1442568218).

2018772742 is a wasteful number, since it uses less digits than its factorization.

2018772742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24495.

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 2018772742 is about 44930.7549680617. The cubic root of 2018772742 is about 1263.8508088316.

It can be divided in two parts, 20187 and 72742, that added together give a palindrome (92929).

The spelling of 2018772742 in words is "two billion, eighteen million, seven hundred seventy-two thousand, seven hundred forty-two".

Divisors: 1 2 7 14 9857 14629 19714 29258 68999 102403 137998 204806 144198053 288396106 1009386371 2018772742