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120102109 = 712417019
BaseRepresentation
bin1110010100010…
…01110011011101
322100222211010021
413022021303131
5221221231414
615530112141
72655564631
oct712116335
9270884107
10120102109
1161881546
123427b651
131bb6154a
1411d44dc1
15a825c24
hex7289cdd

120102109 has 8 divisors (see below), whose sum is σ = 122316480. Its totient is φ = 117902400.

The previous prime is 120102077. The next prime is 120102121. The reversal of 120102109 is 901201021.

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

It is a cyclic number.

It is not a de Polignac number, because 120102109 - 25 = 120102077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120102092 and 120102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102179) 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, 13602 + ... + 20620.

It is an arithmetic number, because the mean of its divisors is an integer number (15289560).

Almost surely, 2120102109 is an apocalyptic number.

It is an amenable number.

120102109 is a deficient number, since it is larger than the sum of its proper divisors (2214371).

120102109 is an equidigital number, since it uses as much as digits as its factorization.

120102109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 120102109 is about 10959.1107759708. The cubic root of 120102109 is about 493.3822765642.

The spelling of 120102109 in words is "one hundred twenty million, one hundred two thousand, one hundred nine".

Divisors: 1 71 241 7019 17111 498349 1691579 120102109