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12141309 = 323175961
BaseRepresentation
bin101110010100…
…001011111101
3211211211202010
4232110023331
511102010214
61112121433
7205125255
oct56241375
924754663
1012141309
116942a44
124096279
13269140b
141880965
1510ec659
hexb942fd

12141309 has 8 divisors (see below), whose sum is σ = 16892352. Its totient is φ = 7742240.

The previous prime is 12141277. The next prime is 12141317. The reversal of 12141309 is 90314121.

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 12141309 - 25 = 12141277 is a prime.

It is a super-2 number, since 2×121413092 = 294822768466962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12141319) 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, 87912 + ... + 88049.

It is an arithmetic number, because the mean of its divisors is an integer number (2111544).

Almost surely, 212141309 is an apocalyptic number.

It is an amenable number.

12141309 is a deficient number, since it is larger than the sum of its proper divisors (4751043).

12141309 is a wasteful number, since it uses less digits than its factorization.

12141309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175987.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 12141309 is about 3484.4381182624. The cubic root of 12141309 is about 229.8380018671.

The spelling of 12141309 in words is "twelve million, one hundred forty-one thousand, three hundred nine".

Divisors: 1 3 23 69 175961 527883 4047103 12141309