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10971438 = 238322031
BaseRepresentation
bin101001110110…
…100100101110
3202122101222120
4221312210232
510302041223
61031053410
7162153462
oct51664456
922571876
1010971438
116214005
123811266
132371a9a
1416584a2
15e6abe3
hexa7692e

10971438 has 16 divisors (see below), whose sum is σ = 22208256. Its totient is φ = 3612920.

The previous prime is 10971431. The next prime is 10971439. The reversal of 10971438 is 83417901.

It is a junction number, because it is equal to n+sod(n) for n = 10971399 and 10971408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10971431) 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 7 ways as a sum of consecutive naturals, for example, 10518 + ... + 11513.

It is an arithmetic number, because the mean of its divisors is an integer number (1388016).

Almost surely, 210971438 is an apocalyptic number.

10971438 is an abundant number, since it is smaller than the sum of its proper divisors (11236818).

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

10971438 is a wasteful number, since it uses less digits than its factorization.

10971438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22119.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 10971438 is about 3312.3161081032. The cubic root of 10971438 is about 222.2053533677.

The spelling of 10971438 in words is "ten million, nine hundred seventy-one thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 83 166 249 498 22031 44062 66093 132186 1828573 3657146 5485719 10971438