Base | Representation |
---|---|
bin | 1001100010101… |
… | …1101111000110 |
3 | 2210022111000112 |
4 | 2120223233012 |
5 | 40221300110 |
6 | 3545513022 |
7 | 664131023 |
oct | 230535706 |
9 | 83274015 |
10 | 40025030 |
11 | 20658441 |
12 | 114a2772 |
13 | 83a5066 |
14 | 545c54a |
15 | 37a9405 |
hex | 262bbc6 |
40025030 has 16 divisors (see below), whose sum is σ = 74369664. Its totient is φ = 15493440.
The previous prime is 40025023. The next prime is 40025033. The reversal of 40025030 is 3052004.
It is a junction number, because it is equal to n+sod(n) for n = 40024996 and 40025014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (40025033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64247 + ... + 64866.
It is an arithmetic number, because the mean of its divisors is an integer number (4648104).
Almost surely, 240025030 is an apocalyptic number.
40025030 is a deficient number, since it is larger than the sum of its proper divisors (34344634).
40025030 is a wasteful number, since it uses less digits than its factorization.
40025030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129151.
The product of its (nonzero) digits is 120, while the sum is 14.
The square root of 40025030 is about 6326.5338061216. The cubic root of 40025030 is about 342.0665089579.
Adding to 40025030 its reverse (3052004), we get a palindrome (43077034).
The spelling of 40025030 in words is "forty million, twenty-five thousand, thirty".
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