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10989386 = 25494693
BaseRepresentation
bin101001111010…
…111101001010
3202200022121022
4221322331022
510303130021
61031312442
7162260012
oct51727512
922608538
1010989386
116226541
12381b722
132379cc5
141660c42
15e711ab
hexa7af4a

10989386 has 4 divisors (see below), whose sum is σ = 16484082. Its totient is φ = 5494692.

The previous prime is 10989373. The next prime is 10989389. The reversal of 10989386 is 68398901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68398901 = 103664067.

It can be written as a sum of positive squares in only one way, i.e., 6345361 + 4644025 = 2519^2 + 2155^2 .

It is a super-3 number, since 3×109893863 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (10989389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2747345 + ... + 2747348.

Almost surely, 210989386 is an apocalyptic number.

10989386 is a deficient number, since it is larger than the sum of its proper divisors (5494696).

10989386 is an equidigital number, since it uses as much as digits as its factorization.

10989386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494695.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 10989386 is about 3315.0242834706. The cubic root of 10989386 is about 222.3264547506.

The spelling of 10989386 in words is "ten million, nine hundred eighty-nine thousand, three hundred eighty-six".

Divisors: 1 2 5494693 10989386