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169379099 = 172198419
BaseRepresentation
bin10100001100010…
…00010100011011
3102210201100102222
422012020110123
5321330112344
624450214255
74124461421
oct1206102433
9383640388
10169379099
118767902a
124888438b
1329125826
14186d1111
15ed0b5ee
hexa18851b

169379099 has 4 divisors (see below), whose sum is σ = 169479240. Its totient is φ = 169278960.

The previous prime is 169379083. The next prime is 169379141. The reversal of 169379099 is 990973961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990973961 = 6131616597.

It is a cyclic number.

It is not a de Polignac number, because 169379099 - 24 = 169379083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169379099.

It is not an unprimeable number, because it can be changed into a prime (169379039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47489 + ... + 50930.

It is an arithmetic number, because the mean of its divisors is an integer number (42369810).

Almost surely, 2169379099 is an apocalyptic number.

169379099 is a deficient number, since it is larger than the sum of its proper divisors (100141).

169379099 is an equidigital number, since it uses as much as digits as its factorization.

169379099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100140.

The product of its (nonzero) digits is 826686, while the sum is 53.

The square root of 169379099 is about 13014.5725630925. The cubic root of 169379099 is about 553.2905755980.

The spelling of 169379099 in words is "one hundred sixty-nine million, three hundred seventy-nine thousand, ninety-nine".

Divisors: 1 1721 98419 169379099