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80170712541 = 3229874135141
BaseRepresentation
bin100101010101010001…
…0111111110111011101
321122221020100011120200
41022222202333313131
52303142200300131
6100455132334113
75535463545543
oct1125242776735
9248836304520
1080170712541
1131000305a27
1213655014339
13773860655a
143c476d5d93
1521434902e6
hex12aa8bfddd

80170712541 has 24 divisors (see below), whose sum is σ = 119812431960. Its totient is φ = 51596764800.

The previous prime is 80170712497. The next prime is 80170712551. The reversal of 80170712541 is 14521707108.

It can be written as a sum of positive squares in 4 ways, for example, as 2889492516 + 77281220025 = 53754^2 + 277995^2 .

It is not a de Polignac number, because 80170712541 - 226 = 80103603677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80170712496 and 80170712505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80170712551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2263831 + ... + 2298971.

It is an arithmetic number, because the mean of its divisors is an integer number (4992184665).

Almost surely, 280170712541 is an apocalyptic number.

It is an amenable number.

80170712541 is a deficient number, since it is larger than the sum of its proper divisors (39641719419).

80170712541 is a wasteful number, since it uses less digits than its factorization.

80170712541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43917 (or 43914 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The spelling of 80170712541 in words is "eighty billion, one hundred seventy million, seven hundred twelve thousand, five hundred forty-one".

Divisors: 1 3 9 29 87 261 8741 26223 35141 78669 105423 253489 316269 760467 1019089 2281401 3057267 9171801 307167481 921502443 2764507329 8907856949 26723570847 80170712541