Base | Representation |
---|---|
bin | 1000101000110… |
… | …00111110100010 |
3 | 12001100001021100 |
4 | 10110120332202 |
5 | 122022012200 |
6 | 11104535230 |
7 | 1536564204 |
oct | 424307642 |
9 | 161301240 |
10 | 72454050 |
11 | 37997889 |
12 | 20321516 |
13 | 1201a826 |
14 | 98a0774 |
15 | 6562d00 |
hex | 4518fa2 |
72454050 has 36 divisors (see below), whose sum is σ = 194661090. Its totient is φ = 19320960.
The previous prime is 72454043. The next prime is 72454061. The reversal of 72454050 is 5045427.
72454050 is a `hidden beast` number, since 72 + 4 + 540 + 50 = 666.
It can be written as a sum of positive squares in 3 ways, for example, as 28933641 + 43520409 = 5379^2 + 6597^2 .
It is a super-2 number, since 2×724540502 = 10499178722805000, which contains 22 as substring.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 80055 + ... + 80954.
Almost surely, 272454050 is an apocalyptic number.
72454050 is an abundant number, since it is smaller than the sum of its proper divisors (122207040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72454050 is a wasteful number, since it uses less digits than its factorization.
72454050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 161027 (or 161019 counting only the distinct ones).
The product of its (nonzero) digits is 5600, while the sum is 27.
The square root of 72454050 is about 8511.9944783817. The cubic root of 72454050 is about 416.8894346552.
Adding to 72454050 its reverse (5045427), we get a palindrome (77499477).
The spelling of 72454050 in words is "seventy-two million, four hundred fifty-four thousand, fifty".
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