Base | Representation |
---|---|
bin | 1000101001101… |
… | …10010110010100 |
3 | 12001120011022010 |
4 | 10110312112110 |
5 | 122034334411 |
6 | 11111304220 |
7 | 1540605021 |
oct | 424662624 |
9 | 161504263 |
10 | 72574356 |
11 | 37a6a208 |
12 | 2037b070 |
13 | 1206050a |
14 | 98d2548 |
15 | 65887a6 |
hex | 4536594 |
72574356 has 48 divisors (see below), whose sum is σ = 175976640. Its totient is φ = 23251200.
The previous prime is 72574351. The next prime is 72574417. The reversal of 72574356 is 65347527.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72574351) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120456 + ... + 121056.
It is an arithmetic number, because the mean of its divisors is an integer number (3666180).
Almost surely, 272574356 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 72574356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87988320).
72574356 is an abundant number, since it is smaller than the sum of its proper divisors (103402284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72574356 is a wasteful number, since it uses less digits than its factorization.
72574356 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 984 (or 982 counting only the distinct ones).
The product of its digits is 176400, while the sum is 39.
The square root of 72574356 is about 8519.0583986729. The cubic root of 72574356 is about 417.1200477882.
The spelling of 72574356 in words is "seventy-two million, five hundred seventy-four thousand, three hundred fifty-six".
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