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1680922895 = 5794255501
BaseRepresentation
bin110010000110000…
…1101100100001111
311100010221201201112
41210030031210033
511420304013040
6434444002235
756440415561
oct14414154417
94303851645
101680922895
11792923283
123aab3037b
1320a32a242
1411d35b331
159c886365
hex6430d90f

1680922895 has 8 divisors (see below), whose sum is σ = 2042640960. Its totient is φ = 1327716000.

The previous prime is 1680922891. The next prime is 1680922909. The reversal of 1680922895 is 5982290861.

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

It is not a de Polignac number, because 1680922895 - 22 = 1680922891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680922891) 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, 2127356 + ... + 2128145.

It is an arithmetic number, because the mean of its divisors is an integer number (255330120).

Almost surely, 21680922895 is an apocalyptic number.

1680922895 is a deficient number, since it is larger than the sum of its proper divisors (361718065).

1680922895 is an equidigital number, since it uses as much as digits as its factorization.

1680922895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255585.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 1680922895 is about 40999.0596843391. The cubic root of 1680922895 is about 1189.0020338726.

The spelling of 1680922895 in words is "one billion, six hundred eighty million, nine hundred twenty-two thousand, eight hundred ninety-five".

Divisors: 1 5 79 395 4255501 21277505 336184579 1680922895