Search a number
-
+
72143807223 = 3107393157173
BaseRepresentation
bin100001100110000011…
…0110010001011110111
320220012211022010112010
41003030012302023313
52140222303312343
653050432055303
75132535146325
oct1031406621367
9226184263463
1072143807223
1128661331184
1211b94994533
136a59632c37
1436c5626d15
151d2392cd33
hex10cc1b22f7

72143807223 has 16 divisors (see below), whose sum is σ = 97117128576. Its totient is φ = 47633423520.

The previous prime is 72143807209. The next prime is 72143807249. The reversal of 72143807223 is 32270834127.

It is not a de Polignac number, because 72143807223 - 26 = 72143807159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72143807623) 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, 1233265 + ... + 1290437.

It is an arithmetic number, because the mean of its divisors is an integer number (6069820536).

Almost surely, 272143807223 is an apocalyptic number.

72143807223 is a deficient number, since it is larger than the sum of its proper divisors (24973321353).

72143807223 is a wasteful number, since it uses less digits than its factorization.

72143807223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61214.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 72143807223 in words is "seventy-two billion, one hundred forty-three million, eight hundred seven thousand, two hundred twenty-three".

Divisors: 1 3 107 321 3931 11793 57173 171519 420617 1261851 6117511 18352533 224747063 674241189 24047935741 72143807223