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80370949529 = 139296654877
BaseRepresentation
bin100101011011001111…
…0110101110110011001
321200110012010021002102
41022312132311312121
52304044430341104
6100531044213145
75543444541053
oct1126636656631
9250405107072
1080370949529
11310a333aa42
12136b009a1b5
13776ac44690
143c6613a8d3
152155d44a1e
hex12b67b5d99

80370949529 has 8 divisors (see below), whose sum is σ = 86646511560. Its totient is φ = 74108699136.

The previous prime is 80370949523. The next prime is 80370949531. The reversal of 80370949529 is 92594907308.

It can be written as a sum of positive squares in 4 ways, for example, as 4813584400 + 75557365129 = 69380^2 + 274877^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80370949529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80370949523) 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, 3315362 + ... + 3339515.

It is an arithmetic number, because the mean of its divisors is an integer number (10830813945).

Almost surely, 280370949529 is an apocalyptic number.

It is an amenable number.

80370949529 is a deficient number, since it is larger than the sum of its proper divisors (6275562031).

80370949529 is a wasteful number, since it uses less digits than its factorization.

80370949529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655819.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 80370949529 in words is "eighty billion, three hundred seventy million, nine hundred forty-nine thousand, five hundred twenty-nine".

Divisors: 1 13 929 12077 6654877 86513401 6182380733 80370949529