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1672240969 = 7238891567
BaseRepresentation
bin110001110101100…
…0101111101001001
311022112121122100201
41203223011331021
511411043202334
6433533532201
756303546050
oct14353057511
94275548321
101672240969
11788a33433
123a8044061
132085aa5c9
1411c13b397
159bc1dc14
hex63ac5f49

1672240969 has 4 divisors (see below), whose sum is σ = 1911132544. Its totient is φ = 1433349396.

The previous prime is 1672240963. The next prime is 1672240991. The reversal of 1672240969 is 9690422761.

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 1672240969 - 217 = 1672109897 is a prime.

It is a super-2 number, since 2×16722409692 = 5592779716804117922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672240963) 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 3 ways as a sum of consecutive naturals, for example, 119445777 + ... + 119445790.

It is an arithmetic number, because the mean of its divisors is an integer number (477783136).

Almost surely, 21672240969 is an apocalyptic number.

It is an amenable number.

1672240969 is a deficient number, since it is larger than the sum of its proper divisors (238891575).

1672240969 is an equidigital number, since it uses as much as digits as its factorization.

1672240969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238891574.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 1672240969 is about 40893.0430391283. The cubic root of 1672240969 is about 1186.9514438345.

The spelling of 1672240969 in words is "one billion, six hundred seventy-two million, two hundred forty thousand, nine hundred sixty-nine".

Divisors: 1 7 238891567 1672240969