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12141779 = 131949157
BaseRepresentation
bin101110010100…
…010011010011
3211211212101112
4232110103103
511102014104
61112123535
7205126526
oct56242323
924755345
1012141779
116943331
1240965ab
1326916b0
141880bbd
1510ec86e
hexb944d3

12141779 has 8 divisors (see below), whose sum is σ = 13764240. Its totient is φ = 10617696.

The previous prime is 12141761. The next prime is 12141793. The reversal of 12141779 is 97714121.

12141779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12141779 - 212 = 12137683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12141709) 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, 24332 + ... + 24825.

It is an arithmetic number, because the mean of its divisors is an integer number (1720530).

Almost surely, 212141779 is an apocalyptic number.

12141779 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12141779 is a deficient number, since it is larger than the sum of its proper divisors (1622461).

12141779 is a wasteful number, since it uses less digits than its factorization.

12141779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49189.

The product of its digits is 3528, while the sum is 32.

The square root of 12141779 is about 3484.5055603342. The cubic root of 12141779 is about 229.8409675678.

The spelling of 12141779 in words is "twelve million, one hundred forty-one thousand, seven hundred seventy-nine".

Divisors: 1 13 19 247 49157 639041 933983 12141779