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1660382842 = 2991837731
BaseRepresentation
bin110001011110111…
…0110111001111010
311021201022012001211
41202331312321322
511400024222332
6432431433334
756101010206
oct14275667172
94251265054
101660382842
11782274228
123a408584a
13205cb8071
1411a731b06
159ab7a447
hex62f76e7a

1660382842 has 8 divisors (see below), whose sum is σ = 2493090432. Its totient is φ = 829352700.

The previous prime is 1660382839. The next prime is 1660382869. The reversal of 1660382842 is 2482830661.

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

It is a junction number, because it is equal to n+sod(n) for n = 1660382795 and 1660382804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416884 + ... + 420847.

It is an arithmetic number, because the mean of its divisors is an integer number (311636304).

Almost surely, 21660382842 is an apocalyptic number.

1660382842 is a deficient number, since it is larger than the sum of its proper divisors (832707590).

1660382842 is an equidigital number, since it uses as much as digits as its factorization.

1660382842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838724.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 1660382842 is about 40747.7955477348. The cubic root of 1660382842 is about 1184.1391653174.

The spelling of 1660382842 in words is "one billion, six hundred sixty million, three hundred eighty-two thousand, eight hundred forty-two".

Divisors: 1 2 991 1982 837731 1675462 830191421 1660382842