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80765103722 = 2126173320057
BaseRepresentation
bin100101100110111111…
…0011010111001101010
321201110122210100222212
41023031332122321222
52310401331304342
6101034124245122
75556302024462
oct1131576327152
9251418710885
1080765103722
1131285882906
12137a00a07a2
1378017ba204
143ca261cba2
15217a751182
hex12cdf9ae6a

80765103722 has 8 divisors (see below), whose sum is σ = 121148994276. Its totient is φ = 40382105632.

The previous prime is 80765103721. The next prime is 80765103751. The reversal of 80765103722 is 22730156708.

It can be written as a sum of positive squares in 2 ways, for example, as 80043160561 + 721943161 = 282919^2 + 26869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×807651037223 (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80765103722.

It is not an unprimeable number, because it can be changed into a prime (80765103721) 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, 92318 + ... + 412374.

Almost surely, 280765103722 is an apocalyptic number.

80765103722 is a deficient number, since it is larger than the sum of its proper divisors (40383890554).

80765103722 is a wasteful number, since it uses less digits than its factorization.

80765103722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446232.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 80765103722 in words is "eighty billion, seven hundred sixty-five million, one hundred three thousand, seven hundred twenty-two".

Divisors: 1 2 126173 252346 320057 640114 40382551861 80765103722