Base | Representation |
---|---|
bin | 1000101011100… |
… | …01000101100111 |
3 | 12002000101100001 |
4 | 10111301011213 |
5 | 122120034301 |
6 | 11120402131 |
7 | 1542626326 |
oct | 425610547 |
9 | 162011301 |
10 | 72814951 |
11 | 38113a50 |
12 | 20476347 |
13 | 12115b91 |
14 | 99560bd |
15 | 65d4c01 |
hex | 4571167 |
72814951 has 8 divisors (see below), whose sum is σ = 80933904. Its totient is φ = 64945920.
The previous prime is 72814949. The next prime is 72814967. The reversal of 72814951 is 15941827.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 72814951 - 21 = 72814949 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 72814951.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72814921) 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 7 ways as a sum of consecutive naturals, for example, 61866 + ... + 63031.
It is an arithmetic number, because the mean of its divisors is an integer number (10116738).
Almost surely, 272814951 is an apocalyptic number.
72814951 is a deficient number, since it is larger than the sum of its proper divisors (8118953).
72814951 is a wasteful number, since it uses less digits than its factorization.
72814951 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124961.
The product of its digits is 20160, while the sum is 37.
The square root of 72814951 is about 8533.1677002154. The cubic root of 72814951 is about 417.5804781094.
The spelling of 72814951 in words is "seventy-two million, eight hundred fourteen thousand, nine hundred fifty-one".
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