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72080037053 = 106967427537
BaseRepresentation
bin100001100100001001…
…1100001010010111101
320220001101022021021222
41003020103201102331
52140104442141203
653040233203125
75131132130423
oct1031023412275
9226041267258
1072080037053
1128629335762
1211b775604a5
136a49365bcb
1436bad87113
151d1d033038
hex10c84e14bd

72080037053 has 4 divisors (see below), whose sum is σ = 72147465660. Its totient is φ = 72012608448.

The previous prime is 72080037041. The next prime is 72080037067. The reversal of 72080037053 is 35073008027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35073008027 = 148723586421.

It can be written as a sum of positive squares in 2 ways, for example, as 50080621369 + 21999415684 = 223787^2 + 148322^2 .

It is a cyclic number.

It is not a de Polignac number, because 72080037053 - 26 = 72080036989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72080030053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33712700 + ... + 33714837.

It is an arithmetic number, because the mean of its divisors is an integer number (18036866415).

Almost surely, 272080037053 is an apocalyptic number.

It is an amenable number.

72080037053 is a deficient number, since it is larger than the sum of its proper divisors (67428607).

72080037053 is a wasteful number, since it uses less digits than its factorization.

72080037053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67428606.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 72080037053 in words is "seventy-two billion, eighty million, thirty-seven thousand, fifty-three".

Divisors: 1 1069 67427537 72080037053