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102002211 = 3211333579
BaseRepresentation
bin1100001010001…
…10111000100011
321002221020201200
412011012320203
5202103032321
614042132243
72346001353
oct605067043
9232836650
10102002211
1152639853
122a1b1083
1318194c4c
14d792b63
158e4cd26
hex6146e23

102002211 has 6 divisors (see below), whose sum is σ = 147336540. Its totient is φ = 68001468.

The previous prime is 102002191. The next prime is 102002249. The reversal of 102002211 is 112200201.

It is not a de Polignac number, because 102002211 - 25 = 102002179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11333579 = 102002211 / (1 + 0 + 2 + 0 + 0 + 2 + 2 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 102002193 and 102002202.

It is not an unprimeable number, because it can be changed into a prime (102002281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5666781 + ... + 5666798.

It is an arithmetic number, because the mean of its divisors is an integer number (24556090).

Almost surely, 2102002211 is an apocalyptic number.

102002211 is a deficient number, since it is larger than the sum of its proper divisors (45334329).

102002211 is a wasteful number, since it uses less digits than its factorization.

102002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11333585 (or 11333582 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 102002211 is about 10099.6143985798. The cubic root of 102002211 is about 467.2362487977.

Adding to 102002211 its reverse (112200201), we get a palindrome (214202412).

The spelling of 102002211 in words is "one hundred two million, two thousand, two hundred eleven".

Divisors: 1 3 9 11333579 34000737 102002211