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10768509 = 321196501
BaseRepresentation
bin101001000101…
…000001111101
3202021002121200
4221011001331
510224043014
61022450113
7160350033
oct51050175
922232550
1010768509
1160955a4
123733939
1323005cb
141604553
15e2aa09
hexa4507d

10768509 has 6 divisors (see below), whose sum is σ = 15554526. Its totient is φ = 7179000.

The previous prime is 10768493. The next prime is 10768523. The reversal of 10768509 is 90586701.

It can be written as a sum of positive squares in only one way, i.e., 9903609 + 864900 = 3147^2 + 930^2 .

It is not a de Polignac number, because 10768509 - 24 = 10768493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10768529) 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 5 ways as a sum of consecutive naturals, for example, 598242 + ... + 598259.

It is an arithmetic number, because the mean of its divisors is an integer number (2592421).

Almost surely, 210768509 is an apocalyptic number.

It is an amenable number.

10768509 is a deficient number, since it is larger than the sum of its proper divisors (4786017).

10768509 is a wasteful number, since it uses less digits than its factorization.

10768509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196507 (or 1196504 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 10768509 is about 3281.5406442706. The cubic root of 10768509 is about 220.8268403296.

The spelling of 10768509 in words is "ten million, seven hundred sixty-eight thousand, five hundred nine".

Divisors: 1 3 9 1196501 3589503 10768509