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148838205 = 3530732321
BaseRepresentation
bin10001101111100…
…01011100111101
3101101001202122010
420313301130331
5301100310310
622434041433
73455050425
oct1067613475
9341052563
10148838205
117701938a
1241a19279
1324ab3159
1415aa5485
15d100320
hex8df173d

148838205 has 16 divisors (see below), whose sum is σ = 238924224. Its totient is φ = 79119360.

The previous prime is 148838201. The next prime is 148838219. The reversal of 148838205 is 502838841.

It is not a de Polignac number, because 148838205 - 22 = 148838201 is a prime.

It is a super-2 number, since 2×1488382052 = 44305622535244050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148838201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11556 + ... + 20765.

It is an arithmetic number, because the mean of its divisors is an integer number (14932764).

Almost surely, 2148838205 is an apocalyptic number.

148838205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148838205 is a deficient number, since it is larger than the sum of its proper divisors (90086019).

148838205 is a wasteful number, since it uses less digits than its factorization.

148838205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32636.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 148838205 is about 12199.9264342044. The cubic root of 148838205 is about 529.9539594514.

It can be divided in two parts, 1488 and 38205, that added together give a palindrome (39693).

The spelling of 148838205 in words is "one hundred forty-eight million, eight hundred thirty-eight thousand, two hundred five".

Divisors: 1 3 5 15 307 921 1535 4605 32321 96963 161605 484815 9922547 29767641 49612735 148838205