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149419145 = 571420899
BaseRepresentation
bin10001110011111…
…11010010001001
3101102011021112102
420321333102021
5301222403040
622454323145
73463020221
oct1071772211
9342137472
10149419145
11773858a7
12420594b5
1324c576c5
1415bb7081
15d1b7515
hex8e7f489

149419145 has 8 divisors (see below), whose sum is σ = 181828800. Its totient is φ = 117851440.

The previous prime is 149419139. The next prime is 149419147. The reversal of 149419145 is 541914941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 149419145 - 214 = 149402761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149419099 and 149419108.

It is not an unprimeable number, because it can be changed into a prime (149419147) 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, 210095 + ... + 210804.

It is an arithmetic number, because the mean of its divisors is an integer number (22728600).

Almost surely, 2149419145 is an apocalyptic number.

It is an amenable number.

149419145 is a deficient number, since it is larger than the sum of its proper divisors (32409655).

149419145 is an equidigital number, since it uses as much as digits as its factorization.

149419145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420975.

The product of its digits is 25920, while the sum is 38.

The square root of 149419145 is about 12223.7124066300. The cubic root of 149419145 is about 530.6425634782.

The spelling of 149419145 in words is "one hundred forty-nine million, four hundred nineteen thousand, one hundred forty-five".

Divisors: 1 5 71 355 420899 2104495 29883829 149419145