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215132000 = 255353783
BaseRepresentation
bin11001101001010…
…10011101100000
3112222210211121212
430310222131200
5420033211000
633203005252
75221406666
oct1464523540
9488724555
10215132000
11100488946
1260069828
1335754a55
1420800c36
1513d47c35
hexcd2a760

215132000 has 48 divisors (see below), whose sum is σ = 528589152. Its totient is φ = 86051200.

The previous prime is 215131997. The next prime is 215132017. The reversal of 215132000 is 231512.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 22892 + ... + 30891.

It is an arithmetic number, because the mean of its divisors is an integer number (11012274).

Almost surely, 2215132000 is an apocalyptic number.

215132000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215132000 is an abundant number, since it is smaller than the sum of its proper divisors (313457152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215132000 is an equidigital number, since it uses as much as digits as its factorization.

215132000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53808 (or 53790 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 215132000 is about 14667.3787705916. The cubic root of 215132000 is about 599.1952173203.

Adding to 215132000 its reverse (231512), we get a palindrome (215363512).

The spelling of 215132000 in words is "two hundred fifteen million, one hundred thirty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 53783 107566 215132 268915 430264 537830 860528 1075660 1344575 1721056 2151320 2689150 4302640 5378300 6722875 8605280 10756600 13445750 21513200 26891500 43026400 53783000 107566000 215132000