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2721663030 = 23590722101
BaseRepresentation
bin1010001000111001…
…0100100000110110
321000200021210210110
42202032110200312
521033221204110
61130022403450
7124305516432
oct24216244066
97020253713
102721663030
111177342799
1263b590586
13344b2cac8
141bb6719c2
1510de13a20
hexa2394836

2721663030 has 16 divisors (see below), whose sum is σ = 6531991344. Its totient is φ = 725776800.

The previous prime is 2721662989. The next prime is 2721663053. The reversal of 2721663030 is 303661272.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 90722101 = 2721663030 / (2 + 7 + 2 + 1 + 6 + 6 + 3 + 0 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45361021 + ... + 45361080.

It is an arithmetic number, because the mean of its divisors is an integer number (408249459).

Almost surely, 22721663030 is an apocalyptic number.

2721663030 is an abundant number, since it is smaller than the sum of its proper divisors (3810328314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2721663030 is a wasteful number, since it uses less digits than its factorization.

2721663030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90722111.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 2721663030 is about 52169.5603776762. The cubic root of 2721663030 is about 1396.1908409114.

The spelling of 2721663030 in words is "two billion, seven hundred twenty-one million, six hundred sixty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 90722101 181444202 272166303 453610505 544332606 907221010 1360831515 2721663030