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212513153 = 317196553
BaseRepresentation
bin11001010101010…
…11000110000001
3112210212210020112
430222223012001
5413400410103
633030521105
75160221606
oct1452530601
9483783215
10212513153
11a9a5a306
125b206195
1335048a38
142031c6ad
15139cbcd8
hexcaab181

212513153 has 8 divisors (see below), whose sum is σ = 222460416. Its totient is φ = 202759200.

The previous prime is 212513143. The next prime is 212513177. The reversal of 212513153 is 351315212.

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 212513153 - 210 = 212512129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212513143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46076 + ... + 50477.

It is an arithmetic number, because the mean of its divisors is an integer number (27807552).

Almost surely, 2212513153 is an apocalyptic number.

It is an amenable number.

212513153 is a deficient number, since it is larger than the sum of its proper divisors (9947263).

212513153 is an equidigital number, since it uses as much as digits as its factorization.

212513153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96655.

The product of its digits is 900, while the sum is 23.

The square root of 212513153 is about 14577.8308743105. The cubic root of 212513153 is about 596.7539077759.

Adding to 212513153 its reverse (351315212), we get a palindrome (563828365).

The spelling of 212513153 in words is "two hundred twelve million, five hundred thirteen thousand, one hundred fifty-three".

Divisors: 1 31 71 2201 96553 2993143 6855263 212513153