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120102102 = 234977643
BaseRepresentation
bin1110010100010…
…01110011010110
322100222211010000
413022021303112
5221221231402
615530112130
72655564621
oct712116326
9270884100
10120102102
116188153a
123427b646
131bb61543
1411d44db8
15a825c1c
hex7289cd6

120102102 has 40 divisors (see below), whose sum is σ = 271927656. Its totient is φ = 39616128.

The previous prime is 120102077. The next prime is 120102121. The reversal of 120102102 is 201201021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11893 + ... + 19535.

Almost surely, 2120102102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120102102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135963828).

120102102 is an abundant number, since it is smaller than the sum of its proper divisors (151825554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120102102 is an equidigital number, since it uses as much as digits as its factorization.

120102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754 (or 7745 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 120102102 is about 10959.1104566018. The cubic root of 120102102 is about 493.3822669788.

Adding to 120102102 its reverse (201201021), we get a palindrome (321303123).

The spelling of 120102102 in words is "one hundred twenty million, one hundred two thousand, one hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 97 162 194 291 582 873 1746 2619 5238 7643 7857 15286 15714 22929 45858 68787 137574 206361 412722 619083 741371 1238166 1482742 2224113 4448226 6672339 13344678 20017017 40034034 60051051 120102102