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2772670243 = 72389145463
BaseRepresentation
bin1010010101000011…
…1001011100100011
321011020021020112111
42211100321130203
521134300421433
61135043540151
7125465210500
oct24520713443
97136236474
102772670243
1111a3111212
1265468a657
1335257b7a5
141c434c4a7
1511363bdcd
hexa5439723

2772670243 has 12 divisors (see below), whose sum is σ = 3233664720. Its totient is φ = 2370448752.

The previous prime is 2772670237. The next prime is 2772670273. The reversal of 2772670243 is 3420762772.

It is a de Polignac number, because none of the positive numbers 2k-2772670243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2772670196 and 2772670205.

It is not an unprimeable number, because it can be changed into a prime (2772670273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53671 + ... + 91792.

It is an arithmetic number, because the mean of its divisors is an integer number (269472060).

Almost surely, 22772670243 is an apocalyptic number.

2772670243 is a deficient number, since it is larger than the sum of its proper divisors (460994477).

2772670243 is a wasteful number, since it uses less digits than its factorization.

2772670243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145866 (or 145859 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 40.

The square root of 2772670243 is about 52656.1510461978. The cubic root of 2772670243 is about 1404.8590079007.

It can be divided in two parts, 27726 and 70243, that added together give a square (97969 = 3132).

The spelling of 2772670243 in words is "two billion, seven hundred seventy-two million, six hundred seventy thousand, two hundred forty-three".

Divisors: 1 7 49 389 2723 19061 145463 1018241 7127687 56585107 396095749 2772670243