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80317638912 = 283729722003
BaseRepresentation
bin100101011001101001…
…1011110100100000000
321200022110210210200010
41022303103132210000
52303442303421122
6100521501424520
75542226444400
oct1126323364400
9250273723603
1080317638912
1131076238985
121369626b140
13775cb9a434
143c5d020800
152151313e0c
hex12b34de900

80317638912 has 216 divisors, whose sum is σ = 251236919136. Its totient is φ = 22710288384.

The previous prime is 80317638899. The next prime is 80317638931. The reversal of 80317638912 is 21983671308.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3639303 + ... + 3661305.

Almost surely, 280317638912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80317638912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125618459568).

80317638912 is an abundant number, since it is smaller than the sum of its proper divisors (170919280224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80317638912 is a wasteful number, since it uses less digits than its factorization.

80317638912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22133 (or 22112 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 80317638912 in words is "eighty billion, three hundred seventeen million, six hundred thirty-eight thousand, nine hundred twelve".