Base | Representation |
---|---|
bin | 1110110000110101111000 |
3 | 21021121202000 |
4 | 32300311320 |
5 | 1442320242 |
6 | 214541000 |
7 | 44616003 |
oct | 16606570 |
9 | 7247660 |
10 | 3870072 |
11 | 2203708 |
12 | 1367760 |
13 | a566ab |
14 | 72a53a |
15 | 516a4c |
hex | 3b0d78 |
3870072 has 128 divisors (see below), whose sum is σ = 12096000. Its totient is φ = 1140480.
The previous prime is 3870059. The next prime is 3870073. The reversal of 3870072 is 2700783.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3870073) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94372 + ... + 94412.
It is an arithmetic number, because the mean of its divisors is an integer number (94500).
Almost surely, 23870072 is an apocalyptic number.
3870072 is the 984-th decagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3870072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6048000).
3870072 is an abundant number, since it is smaller than the sum of its proper divisors (8225928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3870072 is a wasteful number, since it uses less digits than its factorization.
3870072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98 (or 88 counting only the distinct ones).
The product of its (nonzero) digits is 2352, while the sum is 27.
The square root of 3870072 is about 1967.2498570339. The cubic root of 3870072 is about 157.0024206153.
The spelling of 3870072 in words is "three million, eight hundred seventy thousand, seventy-two".
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