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2721330939 = 33129261623
BaseRepresentation
bin1010001000110100…
…0011011011111011
321000122122221020210
42202031003123323
521033130042224
61130011322203
7124302634305
oct24215033373
97018587223
102721330939
111177136238
1263b450363
13344a448c2
141bb5c6975
1510dd9a429
hexa23436fb

2721330939 has 8 divisors (see below), whose sum is σ = 3745487872. Its totient is φ = 1755697320.

The previous prime is 2721330923. The next prime is 2721330959. The reversal of 2721330939 is 9390331272.

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

It is not a de Polignac number, because 2721330939 - 24 = 2721330923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2721330897 and 2721330906.

It is not an unprimeable number, because it can be changed into a prime (2721330919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14630719 + ... + 14630904.

It is an arithmetic number, because the mean of its divisors is an integer number (468185984).

Almost surely, 22721330939 is an apocalyptic number.

2721330939 is a deficient number, since it is larger than the sum of its proper divisors (1024156933).

2721330939 is a wasteful number, since it uses less digits than its factorization.

2721330939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29261657.

The product of its (nonzero) digits is 61236, while the sum is 39.

The square root of 2721330939 is about 52166.3774763017. The cubic root of 2721330939 is about 1396.1340519474.

The spelling of 2721330939 in words is "two billion, seven hundred twenty-one million, three hundred thirty thousand, nine hundred thirty-nine".

Divisors: 1 3 31 93 29261623 87784869 907110313 2721330939