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11669371 = 71667053
BaseRepresentation
bin101100100000…
…111101111011
3210221212100221
4230200331323
510441404441
61054040511
7201121330
oct54407573
923855327
1011669371
11665040a
123aa9137
13255766c
14179a987
1510578d1
hexb20f7b

11669371 has 4 divisors (see below), whose sum is σ = 13336432. Its totient is φ = 10002312.

The previous prime is 11669353. The next prime is 11669387. The reversal of 11669371 is 17396611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17396611 = 31561181.

It is a cyclic number.

It is not a de Polignac number, because 11669371 - 27 = 11669243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11669351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833520 + ... + 833533.

It is an arithmetic number, because the mean of its divisors is an integer number (3334108).

Almost surely, 211669371 is an apocalyptic number.

11669371 is a deficient number, since it is larger than the sum of its proper divisors (1667061).

11669371 is an equidigital number, since it uses as much as digits as its factorization.

11669371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667060.

The product of its digits is 6804, while the sum is 34.

The square root of 11669371 is about 3416.0461062462. The cubic root of 11669371 is about 226.8205934952.

The spelling of 11669371 in words is "eleven million, six hundred sixty-nine thousand, three hundred seventy-one".

Divisors: 1 7 1667053 11669371