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102222213 = 353642907
BaseRepresentation
bin1100001011111…
…00100110000101
321010100102111220
412011330212011
5202132102323
614050550553
72350605642
oct605744605
9233312456
10102222213
115277a075
122a298459
1318241122
14d80cdc9
158e930e3
hex617c985

102222213 has 8 divisors (see below), whose sum is σ = 138868128. Its totient is φ = 66862224.

The previous prime is 102222209. The next prime is 102222233. The reversal of 102222213 is 312222201.

It is a happy number.

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

It is not a de Polignac number, because 102222213 - 22 = 102222209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102222192 and 102222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222233) by changing a digit.

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, 321295 + ... + 321612.

It is an arithmetic number, because the mean of its divisors is an integer number (17358516).

Almost surely, 2102222213 is an apocalyptic number.

It is an amenable number.

102222213 is a deficient number, since it is larger than the sum of its proper divisors (36645915).

102222213 is an equidigital number, since it uses as much as digits as its factorization.

102222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642963.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 102222213 is about 10110.5001359972. The cubic root of 102222213 is about 467.5719248389.

Adding to 102222213 its reverse (312222201), we get a palindrome (414444414).

The spelling of 102222213 in words is "one hundred two million, two hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 3 53 159 642907 1928721 34074071 102222213