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215022214 = 2119773737
BaseRepresentation
bin11001101000011…
…11101010000110
3112222121021000201
430310033222012
5420021202324
633200401114
75220441631
oct1464175206
9488537021
10215022214
11100413410
126001619a
1335716aa4
14207b2c18
1513d25444
hexcd0fa86

215022214 has 8 divisors (see below), whose sum is σ = 351854568. Its totient is φ = 97737360.

The previous prime is 215022167. The next prime is 215022217. The reversal of 215022214 is 412220512.

215022214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 215022191 and 215022200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215022217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4886847 + ... + 4886890.

It is an arithmetic number, because the mean of its divisors is an integer number (43981821).

Almost surely, 2215022214 is an apocalyptic number.

215022214 is a deficient number, since it is larger than the sum of its proper divisors (136832354).

215022214 is a wasteful number, since it uses less digits than its factorization.

215022214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773750.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 215022214 is about 14663.6357701629. The cubic root of 215022214 is about 599.0932730265.

Adding to 215022214 its reverse (412220512), we get a palindrome (627242726).

It can be divided in two parts, 21502 and 2214, that added together give a square (23716 = 1542).

The spelling of 215022214 in words is "two hundred fifteen million, twenty-two thousand, two hundred fourteen".

Divisors: 1 2 11 22 9773737 19547474 107511107 215022214