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148924109 = 1917345307
BaseRepresentation
bin10001110000001…
…10011011001101
3101101020010110202
420320012123031
5301111032414
622435543245
73455556035
oct1070063315
9341203422
10148924109
1177077984
1241a5ab25
1324b13299
1415ac88c5
15d11a9de
hex8e066cd

148924109 has 8 divisors (see below), whose sum is σ = 157671840. Its totient is φ = 140267376.

The previous prime is 148924091. The next prime is 148924121. The reversal of 148924109 is 901429841.

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 148924109 - 216 = 148858573 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 (148924189) 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, 19367 + ... + 25940.

It is an arithmetic number, because the mean of its divisors is an integer number (19708980).

Almost surely, 2148924109 is an apocalyptic number.

148924109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

148924109 is a deficient number, since it is larger than the sum of its proper divisors (8747731).

148924109 is a wasteful number, since it uses less digits than its factorization.

148924109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45499.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 148924109 is about 12203.4466033166. The cubic root of 148924109 is about 530.0558965610.

The spelling of 148924109 in words is "one hundred forty-eight million, nine hundred twenty-four thousand, one hundred nine".

Divisors: 1 19 173 3287 45307 860833 7838111 148924109