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11298729 = 3132811031
BaseRepresentation
bin101011000110…
…011110101001
3210021000221110
4223012132221
510343024404
61042100533
7165015621
oct53063651
923230843
1011298729
1164179a2
12394a749
132457a50
141701881
15ed2b89
hexac67a9

11298729 has 16 divisors (see below), whose sum is σ = 16297344. Its totient is φ = 6921600.

The previous prime is 11298709. The next prime is 11298731. The reversal of 11298729 is 92789211.

It is not a de Polignac number, because 11298729 - 219 = 10774441 is a prime.

It is a super-2 number, since 2×112987292 = 255322554030882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11298709) 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 15 ways as a sum of consecutive naturals, for example, 10444 + ... + 11474.

It is an arithmetic number, because the mean of its divisors is an integer number (1018584).

Almost surely, 211298729 is an apocalyptic number.

It is an amenable number.

11298729 is a deficient number, since it is larger than the sum of its proper divisors (4998615).

11298729 is a wasteful number, since it uses less digits than its factorization.

11298729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its digits is 18144, while the sum is 39.

The square root of 11298729 is about 3361.3582076298. The cubic root of 11298729 is about 224.3932889348.

The spelling of 11298729 in words is "eleven million, two hundred ninety-eight thousand, seven hundred twenty-nine".

Divisors: 1 3 13 39 281 843 1031 3093 3653 10959 13403 40209 289711 869133 3766243 11298729