| Base | Representation |
|---|---|
| bin | 1100001010011… |
| … | …00011110110100 |
| 3 | 21002222102011220 |
| 4 | 12011030132310 |
| 5 | 202104301030 |
| 6 | 14042430340 |
| 7 | 2346125250 |
| oct | 605143664 |
| 9 | 232872156 |
| 10 | 102025140 |
| 11 | 52654aa8 |
| 12 | 2a2023b0 |
| 13 | 181a2509 |
| 14 | d79b260 |
| 15 | 8e54a10 |
| hex | 614c7b4 |
102025140 has 96 divisors (see below), whose sum is σ = 327823104. Its totient is φ = 23224320.
The previous prime is 102025139. The next prime is 102025141. The reversal of 102025140 is 41520201.
102025140 = T475 + T476 + ... + T895.
It is an interprime number because it is at equal distance from previous prime (102025139) and next prime (102025141).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102025141) 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 31 ways as a sum of consecutive naturals, for example, 176532 + ... + 177108.
It is an arithmetic number, because the mean of its divisors is an integer number (3414824).
Almost surely, 2102025140 is an apocalyptic number.
102025140 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 102025140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163911552).
102025140 is an abundant number, since it is smaller than the sum of its proper divisors (225797964).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102025140 is a wasteful number, since it uses less digits than its factorization.
102025140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1017 (or 1015 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 15.
The square root of 102025140 is about 10100.7494771428. The cubic root of 102025140 is about 467.2712560693.
Adding to 102025140 its reverse (41520201), we get a palindrome (143545341).
The spelling of 102025140 in words is "one hundred two million, twenty-five thousand, one hundred forty".
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