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120669193 = 349345757
BaseRepresentation
bin1110011000101…
…00010000001001
322102001122000101
413030110100021
5221342403233
615550205401
72663446141
oct714242011
9272048011
10120669193
1162129607
12344b3861
131bccc6b8
1412051921
15a8d8c7d
hex7314409

120669193 has 4 divisors (see below), whose sum is σ = 121015300. Its totient is φ = 120323088.

The previous prime is 120669187. The next prime is 120669217. The reversal of 120669193 is 391966021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391966021 = 2011194911.

It can be written as a sum of positive squares in 2 ways, for example, as 50310649 + 70358544 = 7093^2 + 8388^2 .

It is a cyclic number.

It is not a de Polignac number, because 120669193 - 25 = 120669161 is a prime.

It is a super-2 number, since 2×1206691932 = 29122108278542498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120669793) 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, 172530 + ... + 173227.

It is an arithmetic number, because the mean of its divisors is an integer number (30253825).

Almost surely, 2120669193 is an apocalyptic number.

It is an amenable number.

120669193 is a deficient number, since it is larger than the sum of its proper divisors (346107).

120669193 is an equidigital number, since it uses as much as digits as its factorization.

120669193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346106.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 120669193 is about 10984.9530267544. The cubic root of 120669193 is about 494.1575890328.

The spelling of 120669193 in words is "one hundred twenty million, six hundred sixty-nine thousand, one hundred ninety-three".

Divisors: 1 349 345757 120669193