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80726123102887 = 543729167509053
BaseRepresentation
bin10010010110101110000011…
…111001000100001010100111
3101120211100020022120112201001
4102112232003321010022213
541040104100003243022
6443405022522414131
723001161404502563
oct2226560371041247
9346740208515631
1080726123102887
11237a3835a69669
12907931b361347
133607596414b92
1415d12454766a3
1594ed120aeb27
hex496b83e442a7

80726123102887 has 8 divisors (see below), whose sum is σ = 80743897497536. Its totient is φ = 80708349795552.

The previous prime is 80726123102869. The next prime is 80726123102929. The reversal of 80726123102887 is 78820132162708.

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

It is a cyclic number.

It is not a de Polignac number, because 80726123102887 - 27 = 80726123102759 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 (80726123102837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158326453 + ... + 158835505.

It is an arithmetic number, because the mean of its divisors is an integer number (10092987187192).

Almost surely, 280726123102887 is an apocalyptic number.

80726123102887 is a deficient number, since it is larger than the sum of its proper divisors (17774394649).

80726123102887 is a wasteful number, since it uses less digits than its factorization.

80726123102887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543657.

The product of its (nonzero) digits is 3612672, while the sum is 55.

The spelling of 80726123102887 in words is "eighty trillion, seven hundred twenty-six billion, one hundred twenty-three million, one hundred two thousand, eight hundred eighty-seven".

Divisors: 1 5437 29167 509053 158580979 2767721161 14847548851 80726123102887