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10213893 = 321134877
BaseRepresentation
bin100110111101…
…101000000101
3201012220211100
4212331220011
510103321033
61002530313
7152550054
oct46755005
921186740
1010213893
115846938
123506999
132168031
1414dc39b
15d6b513
hex9bda05

10213893 has 6 divisors (see below), whose sum is σ = 14753414. Its totient is φ = 6809256.

The previous prime is 10213891. The next prime is 10213927. The reversal of 10213893 is 39831201.

10213893 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9941409 + 272484 = 3153^2 + 522^2 .

It is not a de Polignac number, because 10213893 - 21 = 10213891 is a prime.

It is a super-2 number, since 2×102138932 = 208647220430898, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10213891) 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, 567430 + ... + 567447.

Almost surely, 210213893 is an apocalyptic number.

It is an amenable number.

10213893 is a deficient number, since it is larger than the sum of its proper divisors (4539521).

10213893 is a wasteful number, since it uses less digits than its factorization.

10213893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134883 (or 1134880 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 10213893 is about 3195.9181779263. The cubic root of 10213893 is about 216.9687072179.

It can be divided in two parts, 102 and 13893, that multiplied together give a triangular number (1417086 = T1683).

The spelling of 10213893 in words is "ten million, two hundred thirteen thousand, eight hundred ninety-three".

Divisors: 1 3 9 1134877 3404631 10213893