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212215201 = 1124180051
BaseRepresentation
bin11001010011000…
…10010110100001
3112210022122112021
430221202112201
5413311341301
633020301441
75154541132
oct1451422641
9483278467
10212215201
11a9876470
125b0a1881
1334c73233
1420281c89
151396d8a1
hexca625a1

212215201 has 8 divisors (see below), whose sum is σ = 232471008. Its totient is φ = 192120000.

The previous prime is 212215189. The next prime is 212215207. The reversal of 212215201 is 102512212.

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 212215201 - 25 = 212215169 is a prime.

It is a super-3 number, since 3×2122152013 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212215207) 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, 37375 + ... + 42676.

It is an arithmetic number, because the mean of its divisors is an integer number (29058876).

Almost surely, 2212215201 is an apocalyptic number.

It is an amenable number.

212215201 is a deficient number, since it is larger than the sum of its proper divisors (20255807).

212215201 is a wasteful number, since it uses less digits than its factorization.

212215201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80303.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 212215201 is about 14567.6079367891. The cubic root of 212215201 is about 596.4748863306.

Adding to 212215201 its reverse (102512212), we get a palindrome (314727413).

The spelling of 212215201 in words is "two hundred twelve million, two hundred fifteen thousand, two hundred one".

Divisors: 1 11 241 2651 80051 880561 19292291 212215201