Search a number
-
+
80017272 = 23321111351
BaseRepresentation
bin1001100010011…
…11011101111000
312120120022001200
410301033131320
5130441023042
611535014200
71661064336
oct461173570
9176508050
1080017272
1141193185
122296a360
13137681ca
14a8acb56
157058c4c
hex4c4f778

80017272 has 24 divisors (see below), whose sum is σ = 216713640. Its totient is φ = 26672400.

The previous prime is 80017261. The next prime is 80017291. The reversal of 80017272 is 27271008.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555604 + ... + 555747.

It is an arithmetic number, because the mean of its divisors is an integer number (9029735).

Almost surely, 280017272 is an apocalyptic number.

It is an amenable number.

80017272 is an abundant number, since it is smaller than the sum of its proper divisors (136696368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80017272 is a wasteful number, since it uses less digits than its factorization.

80017272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111363 (or 1111356 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 80017272 is about 8945.2373920428. The cubic root of 80017272 is about 430.9179452716.

The spelling of 80017272 in words is "eighty million, seventeen thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1111351 2222702 3334053 4445404 6668106 8890808 10002159 13336212 20004318 26672424 40008636 80017272