Search a number
-
+
10749439 = 22394801
BaseRepresentation
bin101001000000…
…010111111111
3202020010110101
4221000113333
510222440224
61022221531
7160240321
oct51002777
922203411
1010749439
116082238
1237248a7
1322c4a1c
1415db611
15e25044
hexa405ff

10749439 has 4 divisors (see below), whose sum is σ = 10756480. Its totient is φ = 10742400.

The previous prime is 10749437. The next prime is 10749449. The reversal of 10749439 is 93494701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10749439 - 21 = 10749437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10749398 and 10749407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10749433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162 + ... + 4639.

It is an arithmetic number, because the mean of its divisors is an integer number (2689120).

Almost surely, 210749439 is an apocalyptic number.

10749439 is a deficient number, since it is larger than the sum of its proper divisors (7041).

10749439 is an equidigital number, since it uses as much as digits as its factorization.

10749439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7040.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 10749439 is about 3278.6337093369. The cubic root of 10749439 is about 220.6964088975.

The spelling of 10749439 in words is "ten million, seven hundred forty-nine thousand, four hundred thirty-nine".

Divisors: 1 2239 4801 10749439