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12141885 = 357115637
BaseRepresentation
bin101110010100…
…010100111101
3211211212112110
4232110110331
511102020020
61112124233
7205130040
oct56242475
924755473
1012141885
116943418
124096679
132691762
141880c57
1510ec8e0
hexb9453d

12141885 has 16 divisors (see below), whose sum is σ = 22202496. Its totient is φ = 5550528.

The previous prime is 12141881. The next prime is 12141887. The reversal of 12141885 is 58814121.

It is a happy number.

It is not a de Polignac number, because 12141885 - 22 = 12141881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12141881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57714 + ... + 57923.

It is an arithmetic number, because the mean of its divisors is an integer number (1387656).

Almost surely, 212141885 is an apocalyptic number.

12141885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12141885 is a deficient number, since it is larger than the sum of its proper divisors (10060611).

12141885 is a wasteful number, since it uses less digits than its factorization.

12141885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115652.

The product of its digits is 2560, while the sum is 30.

The square root of 12141885 is about 3484.5207704934. The cubic root of 12141885 is about 229.8416364174.

The spelling of 12141885 in words is "twelve million, one hundred forty-one thousand, eight hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 105 115637 346911 578185 809459 1734555 2428377 4047295 12141885