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149999683 = 263643887
BaseRepresentation
bin10001111000011…
…01000001000011
3101110020202212211
420330031001003
5301344442213
622515002551
73500655601
oct1074150103
9343222784
10149999683
1177741a89
1242299457
13250cba12
1415cc8871
15d27e53d
hex8f0d043

149999683 has 8 divisors (see below), whose sum is σ = 150974208. Its totient is φ = 149028744.

The previous prime is 149999651. The next prime is 149999713. The reversal of 149999683 is 386999941.

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 149999683 - 25 = 149999651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149996683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168666 + ... + 169552.

It is an arithmetic number, because the mean of its divisors is an integer number (18871776).

Almost surely, 2149999683 is an apocalyptic number.

149999683 is a deficient number, since it is larger than the sum of its proper divisors (974525).

149999683 is an equidigital number, since it uses as much as digits as its factorization.

149999683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793.

The product of its digits is 3779136, while the sum is 58.

The square root of 149999683 is about 12247.4357724382. The cubic root of 149999683 is about 531.3289102991.

The spelling of 149999683 in words is "one hundred forty-nine million, nine hundred ninety-nine thousand, six hundred eighty-three".

Divisors: 1 263 643 887 169109 233281 570341 149999683