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10997405 = 53170951
BaseRepresentation
bin101001111100…
…111010011101
3202200201121022
4221330322131
510303404110
61031413525
7162322256
oct51747235
922621538
1010997405
116231571
1238242a5
132380853
141663b2d
15e73755
hexa7ce9d

10997405 has 8 divisors (see below), whose sum is σ = 13622784. Its totient is φ = 8514000.

The previous prime is 10997387. The next prime is 10997407. The reversal of 10997405 is 50479901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10997405 - 28 = 10997149 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 (10997407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35321 + ... + 35630.

It is an arithmetic number, because the mean of its divisors is an integer number (1702848).

Almost surely, 210997405 is an apocalyptic number.

It is an amenable number.

10997405 is a deficient number, since it is larger than the sum of its proper divisors (2625379).

10997405 is an equidigital number, since it uses as much as digits as its factorization.

10997405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70987.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 10997405 is about 3316.2335563105. The cubic root of 10997405 is about 222.3805191108.

The spelling of 10997405 in words is "ten million, nine hundred ninety-seven thousand, four hundred five".

Divisors: 1 5 31 155 70951 354755 2199481 10997405