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2063030581 = 11631773887
BaseRepresentation
bin111101011110111…
…0101100100110101
312022202221210221001
41322331311210311
513211113434311
6540413523301
7102060320263
oct17275654465
95282853831
102063030581
11969588457
12496aa3531
1326b545871
14157dc5433
15c11b34c1
hex7af75935

2063030581 has 4 divisors (see below), whose sum is σ = 2064805632. Its totient is φ = 2061255532.

The previous prime is 2063030573. The next prime is 2063030587. The reversal of 2063030581 is 1850303602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2063030581 - 23 = 2063030573 is a prime.

It is a super-2 number, since 2×20630305812 = 8512190356282395122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2063030587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885781 + ... + 888106.

It is an arithmetic number, because the mean of its divisors is an integer number (516201408).

Almost surely, 22063030581 is an apocalyptic number.

It is an amenable number.

2063030581 is a deficient number, since it is larger than the sum of its proper divisors (1775051).

2063030581 is a wasteful number, since it uses less digits than its factorization.

2063030581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775050.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2063030581 is about 45420.5964403815. The cubic root of 2063030581 is about 1273.0199857525.

The spelling of 2063030581 in words is "two billion, sixty-three million, thirty thousand, five hundred eighty-one".

Divisors: 1 1163 1773887 2063030581