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12146995 = 57347057
BaseRepresentation
bin101110010101…
…100100110011
3211212010112201
4232111210303
511102200440
61112204031
7205150660
oct56254463
924763481
1012146995
116947243
124099617
132693b93
141882a67
1510ee19a
hexb95933

12146995 has 8 divisors (see below), whose sum is σ = 16658784. Its totient is φ = 8329344.

The previous prime is 12146983. The next prime is 12146999. The reversal of 12146995 is 59964121.

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 12146995 - 25 = 12146963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12146999) 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 7 ways as a sum of consecutive naturals, for example, 173494 + ... + 173563.

It is an arithmetic number, because the mean of its divisors is an integer number (2082348).

Almost surely, 212146995 is an apocalyptic number.

12146995 is a deficient number, since it is larger than the sum of its proper divisors (4511789).

12146995 is an equidigital number, since it uses as much as digits as its factorization.

12146995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347069.

The product of its digits is 19440, while the sum is 37.

The square root of 12146995 is about 3485.2539362290. The cubic root of 12146995 is about 229.8738753994.

The spelling of 12146995 in words is "twelve million, one hundred forty-six thousand, nine hundred ninety-five".

Divisors: 1 5 7 35 347057 1735285 2429399 12146995