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10210123213 = 16693611641
BaseRepresentation
bin10011000001001001…
…00001110111001101
3222100120010222222121
421200210201313031
5131402242420323
64405050212541
7511005421033
oct114044416715
928316128877
1010210123213
11436a391764
121b8b424151
13c693aa434
146cc01c553
153eb566a5d
hex260921dcd

10210123213 has 4 divisors (see below), whose sum is σ = 10210751548. Its totient is φ = 10209494880.

The previous prime is 10210123207. The next prime is 10210123219. The reversal of 10210123213 is 31232101201.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (10210123207) and next prime (10210123219).

It can be written as a sum of positive squares in 2 ways, for example, as 3825793609 + 6384329604 = 61853^2 + 79902^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210123213 - 213 = 10210115021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210123219) 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, 289128 + ... + 322513.

It is an arithmetic number, because the mean of its divisors is an integer number (2552687887).

Almost surely, 210210123213 is an apocalyptic number.

It is an amenable number.

10210123213 is a deficient number, since it is larger than the sum of its proper divisors (628335).

10210123213 is an equidigital number, since it uses as much as digits as its factorization.

10210123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628334.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10210123213 its reverse (31232101201), we get a palindrome (41442224414).

The spelling of 10210123213 in words is "ten billion, two hundred ten million, one hundred twenty-three thousand, two hundred thirteen".

Divisors: 1 16693 611641 10210123213