Base | Representation |
---|---|
bin | 1000101100110… |
… | …11100000011101 |
3 | 12002100012200020 |
4 | 10112123200131 |
5 | 122141114301 |
6 | 11124222353 |
7 | 1544252022 |
oct | 426334035 |
9 | 162305606 |
10 | 72988701 |
11 | 38222545 |
12 | 2053a9b9 |
13 | 12176ca6 |
14 | 999d549 |
15 | 661b436 |
hex | 459b81d |
72988701 has 16 divisors (see below), whose sum is σ = 103442688. Its totient is φ = 45619200.
The previous prime is 72988691. The next prime is 72988763. The reversal of 72988701 is 10788927.
It is not a de Polignac number, because 72988701 - 29 = 72988189 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72988001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11181 + ... + 16461.
It is an arithmetic number, because the mean of its divisors is an integer number (6465168).
Almost surely, 272988701 is an apocalyptic number.
It is an amenable number.
72988701 is a deficient number, since it is larger than the sum of its proper divisors (30453987).
72988701 is a wasteful number, since it uses less digits than its factorization.
72988701 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5572.
The product of its (nonzero) digits is 56448, while the sum is 42.
The square root of 72988701 is about 8543.3424957683. The cubic root of 72988701 is about 417.9123558070.
The spelling of 72988701 in words is "seventy-two million, nine hundred eighty-eight thousand, seven hundred one".
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