Base | Representation |
---|---|
bin | 10110101001110… |
… | …010110001110000 |
3 | 222111010202221210 |
4 | 112221302301300 |
5 | 1234243222030 |
6 | 101413520120 |
7 | 12263261010 |
oct | 2651626160 |
9 | 874122853 |
10 | 380054640 |
11 | 185592749 |
12 | a7343040 |
13 | 6097a004 |
14 | 38691c40 |
15 | 23573bb0 |
hex | 16a72c70 |
380054640 has 160 divisors (see below), whose sum is σ = 1378054656. Its totient is φ = 84833280.
The previous prime is 380054629. The next prime is 380054651. The reversal of 380054640 is 46450083.
It is an interprime number because it is at equal distance from previous prime (380054629) and next prime (380054651).
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 380054598 and 380054607.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69610 + ... + 74870.
Almost surely, 2380054640 is an apocalyptic number.
380054640 is a gapful number since it is divisible by the number (30) 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 380054640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (689027328).
380054640 is an abundant number, since it is smaller than the sum of its proper divisors (998000016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380054640 is a wasteful number, since it uses less digits than its factorization.
380054640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5327 (or 5321 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 30.
The square root of 380054640 is about 19494.9901256707. The cubic root of 380054640 is about 724.3503590021.
The spelling of 380054640 in words is "three hundred eighty million, fifty-four thousand, six hundred forty".
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