| Base | Representation |
|---|---|
| bin | 1110010110100… |
| … | …11000010110100 |
| 3 | 22101120001122001 |
| 4 | 13023103002310 |
| 5 | 221310331400 |
| 6 | 15540345044 |
| 7 | 2661254350 |
| oct | 713230264 |
| 9 | 271501561 |
| 10 | 120402100 |
| 11 | 61a66975 |
| 12 | 343a5184 |
| 13 | 1bc37c60 |
| 14 | 11dc2460 |
| 15 | a884a6a |
| hex | 72d30b4 |
120402100 has 144 divisors (see below), whose sum is σ = 327229056. Its totient is φ = 37440000.
The previous prime is 120402097. The next prime is 120402101. The reversal of 120402100 is 1204021.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120402101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 919035 + ... + 919165.
It is an arithmetic number, because the mean of its divisors is an integer number (2272424).
Almost surely, 2120402100 is an apocalyptic number.
120402100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 120402100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163614528).
120402100 is an abundant number, since it is smaller than the sum of its proper divisors (206826956).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120402100 is a wasteful number, since it uses less digits than its factorization.
120402100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 266 (or 259 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 10.
The square root of 120402100 is about 10972.7890711523. The cubic root of 120402100 is about 493.7927250322.
Adding to 120402100 its reverse (1204021), we get a palindrome (121606121).
Multiplying 120402100 by its reverse (1204021), we get a square (144966656844100 = 120402102).
120402100 divided by its reverse (1204021) gives a square (100 = 102).
The spelling of 120402100 in words is "one hundred twenty million, four hundred two thousand, one hundred".
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