Search a number
-
+
10215213 = 331109841
BaseRepresentation
bin100110111101…
…111100101101
3201012222122020
4212331330231
510103341323
61002540353
7152553651
oct46757455
921188566
1010215213
115847928
1235076b9
132168808
1414dca61
15d6bae3
hex9bdf2d

10215213 has 8 divisors (see below), whose sum is σ = 14059776. Its totient is φ = 6590400.

The previous prime is 10215211. The next prime is 10215229. The reversal of 10215213 is 31251201.

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

It is not a de Polignac number, because 10215213 - 21 = 10215211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10215192 and 10215201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215211) 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, 54828 + ... + 55013.

It is an arithmetic number, because the mean of its divisors is an integer number (1757472).

Almost surely, 210215213 is an apocalyptic number.

It is an amenable number.

10215213 is a deficient number, since it is larger than the sum of its proper divisors (3844563).

10215213 is a wasteful number, since it uses less digits than its factorization.

10215213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109875.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 10215213 is about 3196.1246846767. The cubic root of 10215213 is about 216.9780535189.

Adding to 10215213 its reverse (31251201), we get a palindrome (41466414).

The spelling of 10215213 in words is "ten million, two hundred fifteen thousand, two hundred thirteen".

Divisors: 1 3 31 93 109841 329523 3405071 10215213