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10988117 = 71569731
BaseRepresentation
bin101001111010…
…101001010101
3202200020212022
4221322221111
510303104432
61031302525
7162253220
oct51725125
922606768
1010988117
116225598
12381aa45
13237955a
1416605b7
15e70b12
hexa7aa55

10988117 has 4 divisors (see below), whose sum is σ = 12557856. Its totient is φ = 9418380.

The previous prime is 10988111. The next prime is 10988141. The reversal of 10988117 is 71188901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71188901 = 710169843.

It is a cyclic number.

It is not a de Polignac number, because 10988117 - 212 = 10984021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10988111) 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 3 ways as a sum of consecutive naturals, for example, 784859 + ... + 784872.

It is an arithmetic number, because the mean of its divisors is an integer number (3139464).

Almost surely, 210988117 is an apocalyptic number.

It is an amenable number.

10988117 is a deficient number, since it is larger than the sum of its proper divisors (1569739).

10988117 is an equidigital number, since it uses as much as digits as its factorization.

10988117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569738.

The product of its (nonzero) digits is 4032, while the sum is 35.

The square root of 10988117 is about 3314.8328766319. The cubic root of 10988117 is about 222.3178967010.

The spelling of 10988117 in words is "ten million, nine hundred eighty-eight thousand, one hundred seventeen".

Divisors: 1 7 1569731 10988117