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152450505 = 345419181
BaseRepresentation
bin10010001011000…
…11010111001001
3101121212021210000
421011203113021
5303011404010
623043313213
73530544054
oct1105432711
9347767700
10152450505
1179066359
124307b809
13257793cc
1416365a9b
15d5b57c0
hex91635c9

152450505 has 40 divisors (see below), whose sum is σ = 279977544. Its totient is φ = 79315200.

The previous prime is 152450491. The next prime is 152450531. The reversal of 152450505 is 505054251.

152450505 is a `hidden beast` number, since 152 + 4 + 5 + 0 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1971216 + 150479289 = 1404^2 + 12267^2 .

It is not a de Polignac number, because 152450505 - 213 = 152442313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 12015 + ... + 21195.

Almost surely, 2152450505 is an apocalyptic number.

152450505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152450505 is a deficient number, since it is larger than the sum of its proper divisors (127527039).

152450505 is an equidigital number, since it uses as much as digits as its factorization.

152450505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9239 (or 9230 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 152450505 is about 12347.0848786262. The cubic root of 152450505 is about 534.2070589524.

The spelling of 152450505 in words is "one hundred fifty-two million, four hundred fifty thousand, five hundred five".

Divisors: 1 3 5 9 15 27 41 45 81 123 135 205 369 405 615 1107 1845 3321 5535 9181 16605 27543 45905 82629 137715 247887 376421 413145 743661 1129263 1239435 1882105 3387789 3718305 5646315 10163367 16938945 30490101 50816835 152450505