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10247489 = 72363649
BaseRepresentation
bin100111000101…
…110101000001
3201021121220122
4213011311001
510110404424
61003350025
7153050030
oct47056501
921247818
1010247489
11586a0aa
123522315
13217a405
14150a717
15d7645e
hex9c5d41

10247489 has 8 divisors (see below), whose sum is σ = 12220800. Its totient is φ = 8401536.

The previous prime is 10247477. The next prime is 10247507. The reversal of 10247489 is 98474201.

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

It is a cyclic number.

It is not a de Polignac number, because 10247489 - 24 = 10247473 is a prime.

It is a super-2 number, since 2×102474892 = 210022061610242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10247989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31664 + ... + 31985.

It is an arithmetic number, because the mean of its divisors is an integer number (1527600).

Almost surely, 210247489 is an apocalyptic number.

It is an amenable number.

10247489 is a deficient number, since it is larger than the sum of its proper divisors (1973311).

10247489 is an equidigital number, since it uses as much as digits as its factorization.

10247489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63679.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 10247489 is about 3201.1699423804. The cubic root of 10247489 is about 217.2063346397.

The spelling of 10247489 in words is "ten million, two hundred forty-seven thousand, four hundred eighty-nine".

Divisors: 1 7 23 161 63649 445543 1463927 10247489