Search a number
-
+
72854088881 = 7831059711833
BaseRepresentation
bin100001111011001110…
…0010010110010110001
320222001022211011210012
41003312130102302301
52143201121321011
653245123544305
75156251352330
oct1036634226261
9228038734705
1072854088881
1128996263312
121215282b095
136b40832142
143751ab9d17
151d65e81a8b
hex10f6712cb1

72854088881 has 16 divisors (see below), whose sum is σ = 84280043904. Its totient is φ = 61682961024.

The previous prime is 72854088871. The next prime is 72854088883. The reversal of 72854088881 is 18888045827.

It is a cyclic number.

It is not a de Polignac number, because 72854088881 - 218 = 72853826737 is a prime.

It is a super-2 number, since 2×728540888812 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72854088881.

It is not an unprimeable number, because it can be changed into a prime (72854088883) 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, 6150941 + ... + 6162773.

It is an arithmetic number, because the mean of its divisors is an integer number (5267502744).

Almost surely, 272854088881 is an apocalyptic number.

It is an amenable number.

72854088881 is a deficient number, since it is larger than the sum of its proper divisors (11425955023).

72854088881 is a wasteful number, since it uses less digits than its factorization.

72854088881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22520.

The product of its (nonzero) digits is 9175040, while the sum is 59.

The spelling of 72854088881 in words is "seventy-two billion, eight hundred fifty-four million, eighty-eight thousand, eight hundred eighty-one".

Divisors: 1 7 83 581 10597 11833 74179 82831 879551 982139 6156857 6874973 125394301 877760107 10407726983 72854088881