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148655189 = 2919925759
BaseRepresentation
bin10001101110001…
…00110001010101
3101100201110120202
420313010301111
5301023431224
622430110245
73453356024
oct1067046125
9340643522
10148655189
1176a03931
124194b385
1324a4aa67
1415a588bb
15d0b5eae
hex8dc4c55

148655189 has 8 divisors (see below), whose sum is σ = 154560000. Its totient is φ = 142802352.

The previous prime is 148655179. The next prime is 148655209. The reversal of 148655189 is 981556841.

It is a happy number.

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 148655189 - 24 = 148655173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148655149) 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, 7109 + ... + 18650.

It is an arithmetic number, because the mean of its divisors is an integer number (19320000).

Almost surely, 2148655189 is an apocalyptic number.

It is an amenable number.

148655189 is a deficient number, since it is larger than the sum of its proper divisors (5904811).

148655189 is a wasteful number, since it uses less digits than its factorization.

148655189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25987.

The product of its digits is 345600, while the sum is 47.

The square root of 148655189 is about 12192.4234260462. The cubic root of 148655189 is about 529.7366545039.

The spelling of 148655189 in words is "one hundred forty-eight million, six hundred fifty-five thousand, one hundred eighty-nine".

Divisors: 1 29 199 5771 25759 747011 5126041 148655189