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2030912491 = 411031812657
BaseRepresentation
bin111100100001101…
…0100001111101011
312020112112001012011
41321003110033223
513124403144431
6533305300351
7101220320446
oct17103241753
95215461164
102030912491
11952440683
124881946b7
132649ab78a
14153a2465d
15bd46bcb1
hex790d43eb

2030912491 has 16 divisors (see below), whose sum is σ = 2113046208. Its totient is φ = 1950566400.

The previous prime is 2030912479. The next prime is 2030912549. The reversal of 2030912491 is 1942190302.

It is a cyclic number.

It is not a de Polignac number, because 2030912491 - 225 = 1997358059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2030913491) 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 15 ways as a sum of consecutive naturals, for example, 763035 + ... + 765691.

It is an arithmetic number, because the mean of its divisors is an integer number (132065388).

Almost surely, 22030912491 is an apocalyptic number.

2030912491 is a deficient number, since it is larger than the sum of its proper divisors (82133717).

2030912491 is a wasteful number, since it uses less digits than its factorization.

2030912491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2030912491 is about 45065.6464615787. The cubic root of 2030912491 is about 1266.3791072146.

The spelling of 2030912491 in words is "two billion, thirty million, nine hundred twelve thousand, four hundred ninety-one".

Divisors: 1 41 103 181 2657 4223 7421 18643 108937 273671 480917 764363 11220511 19717597 49534451 2030912491