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10989472 = 251326417
BaseRepresentation
bin101001111010…
…111110100000
3202200022201111
4221322332200
510303130342
61031313104
7162260164
oct51727640
922608644
1010989472
11622660a
12381b794
13237a060
141660ca4
15e71217
hexa7afa0

10989472 has 24 divisors (see below), whose sum is σ = 23300676. Its totient is φ = 5071872.

The previous prime is 10989443. The next prime is 10989499. The reversal of 10989472 is 27498901.

It can be written as a sum of positive squares in 2 ways, for example, as 9461776 + 1527696 = 3076^2 + 1236^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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, 12793 + ... + 13624.

Almost surely, 210989472 is an apocalyptic number.

It is an amenable number.

10989472 is an abundant number, since it is smaller than the sum of its proper divisors (12311204).

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

10989472 is a wasteful number, since it uses less digits than its factorization.

10989472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26440 (or 26432 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 10989472 is about 3315.0372546926. The cubic root of 10989472 is about 222.3270347049.

The spelling of 10989472 in words is "ten million, nine hundred eighty-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 26417 52834 105668 211336 343421 422672 686842 845344 1373684 2747368 5494736 10989472