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2009282861 = 25119014211
BaseRepresentation
bin111011111000011…
…0011100100101101
312012000211010220202
41313300303210231
513103334022421
6531213523245
7100535423345
oct16760634455
95160733822
102009282861
11941207a53
12480aa3525
13260377691
14150bd3d25
15bb5e810b
hex77c3392d

2009282861 has 8 divisors (see below), whose sum is σ = 2018828448. Its totient is φ = 1999750000.

The previous prime is 2009282831. The next prime is 2009282909. The reversal of 2009282861 is 1682829002.

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

It is a cyclic number.

It is not a de Polignac number, because 2009282861 - 214 = 2009266477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009282831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475046 + ... + 479256.

It is an arithmetic number, because the mean of its divisors is an integer number (252353556).

Almost surely, 22009282861 is an apocalyptic number.

It is an amenable number.

2009282861 is a deficient number, since it is larger than the sum of its proper divisors (9545587).

2009282861 is a wasteful number, since it uses less digits than its factorization.

2009282861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6363.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 2009282861 is about 44825.0249414320. The cubic root of 2009282861 is about 1261.8673204964.

The spelling of 2009282861 in words is "two billion, nine million, two hundred eighty-two thousand, eight hundred sixty-one".

Divisors: 1 251 1901 4211 477151 1056961 8005111 2009282861