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10987728 = 243228911
BaseRepresentation
bin101001111010…
…100011010000
3202200020022220
4221322203100
510303101403
61031301040
7162252123
oct51724320
922606286
1010987728
116225274
12381a780
13237931b
1416603ba
15e70953
hexa7a8d0

10987728 has 20 divisors (see below), whose sum is σ = 28385088. Its totient is φ = 3662560.

The previous prime is 10987727. The next prime is 10987751. The reversal of 10987728 is 82778901.

It is a self number, because there is not a number n which added to its sum of digits gives 10987728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10987727) 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 3 ways as a sum of consecutive naturals, for example, 114408 + ... + 114503.

Almost surely, 210987728 is an apocalyptic number.

It is an amenable number.

10987728 is an abundant number, since it is smaller than the sum of its proper divisors (17397360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10987728 is a wasteful number, since it uses less digits than its factorization.

10987728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228922 (or 228916 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 10987728 is about 3314.7742004547. The cubic root of 10987728 is about 222.3152731795.

The spelling of 10987728 in words is "ten million, nine hundred eighty-seven thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 228911 457822 686733 915644 1373466 1831288 2746932 3662576 5493864 10987728