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2118830072 = 231092429851
BaseRepresentation
bin111111001001010…
…1100011111111000
312110122221201102212
41332102230133320
513314410030242
6550125514252
7103335521102
oct17622543770
95418851385
102118830072
1199802a437
124b1712988
13279c81908
1416158c572
15c6036782
hex7e4ac7f8

2118830072 has 16 divisors (see below), whose sum is σ = 4009255800. Its totient is φ = 1049695200.

The previous prime is 2118830069. The next prime is 2118830083. The reversal of 2118830072 is 2700388112.

It is a super-3 number, since 3×21188300723 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214054 + ... + 1215797.

Almost surely, 22118830072 is an apocalyptic number.

It is an amenable number.

2118830072 is a deficient number, since it is larger than the sum of its proper divisors (1890425728).

2118830072 is a wasteful number, since it uses less digits than its factorization.

2118830072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429966 (or 2429962 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2118830072 is about 46030.7513734025. The cubic root of 2118830072 is about 1284.3953050245.

The spelling of 2118830072 in words is "two billion, one hundred eighteen million, eight hundred thirty thousand, seventy-two".

Divisors: 1 2 4 8 109 218 436 872 2429851 4859702 9719404 19438808 264853759 529707518 1059415036 2118830072