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120664105 = 527189051
BaseRepresentation
bin1110011000100…
…11000000101001
322102001101000221
413030103000221
5221342222410
615550130041
72663425252
oct714230051
9272041027
10120664105
1162125801
12344b0921
131bcca2a3
141204db29
15a8d74da
hex7313029

120664105 has 8 divisors (see below), whose sum is σ = 145332864. Its totient is φ = 96174000.

The previous prime is 120664069. The next prime is 120664123. The reversal of 120664105 is 501466021.

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

It is not a de Polignac number, because 120664105 - 29 = 120663593 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 120664105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43171 + ... + 45880.

It is an arithmetic number, because the mean of its divisors is an integer number (18166608).

Almost surely, 2120664105 is an apocalyptic number.

It is an amenable number.

120664105 is a deficient number, since it is larger than the sum of its proper divisors (24668759).

120664105 is an equidigital number, since it uses as much as digits as its factorization.

120664105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89327.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 120664105 is about 10984.7214347930. The cubic root of 120664105 is about 494.1506435729.

It can be divided in two parts, 120 and 664105, that added together give a square (664225 = 8152).

The spelling of 120664105 in words is "one hundred twenty million, six hundred sixty-four thousand, one hundred five".

Divisors: 1 5 271 1355 89051 445255 24132821 120664105