Search a number
-
+
10212313211 = 19537490169
BaseRepresentation
bin10011000001011001…
…11000100001111011
3222100201021021002122
421200230320201323
5131403323010321
64405205151455
7511033141622
oct114054704173
928321237078
1010212313211
114370648081
121b900bb58b
13c699961a9
146cc42c6b9
153eb84a8ab
hex260b3887b

10212313211 has 4 divisors (see below), whose sum is σ = 10749803400. Its totient is φ = 9674823024.

The previous prime is 10212313207. The next prime is 10212313259. The reversal of 10212313211 is 11231321201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11231321201 = 17660665953.

It is a cyclic number.

It is not a de Polignac number, because 10212313211 - 22 = 10212313207 is a prime.

It is a super-2 number, since 2×102123132112 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10212313211.

It is not an unprimeable number, because it can be changed into a prime (10212313201) 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, 268745066 + ... + 268745103.

It is an arithmetic number, because the mean of its divisors is an integer number (2687450850).

Almost surely, 210212313211 is an apocalyptic number.

10212313211 is a deficient number, since it is larger than the sum of its proper divisors (537490189).

10212313211 is an equidigital number, since it uses as much as digits as its factorization.

10212313211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537490188.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10212313211 its reverse (11231321201), we get a palindrome (21443634412).

The spelling of 10212313211 in words is "ten billion, two hundred twelve million, three hundred thirteen thousand, two hundred eleven".

Divisors: 1 19 537490169 10212313211