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80934910056 = 2332711137971409
BaseRepresentation
bin100101101100000011…
…0001011100001101000
321201220111022102111100
41023120012023201220
52311223314110211
6101103032001400
75563433245620
oct1133006134150
9251814272440
1080934910056
1131362712920
1213828b30260
13782aa32330
143cbadc1880
15218a5e4156
hex12d818b868

80934910056 has 384 divisors, whose sum is σ = 294887174400. Its totient is φ = 19366871040.

The previous prime is 80934910051. The next prime is 80934910129. The reversal of 80934910056 is 65001943908.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80934909993 and 80934910020.

It is not an unprimeable number, because it can be changed into a prime (80934910051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57440680 + ... + 57442088.

It is an arithmetic number, because the mean of its divisors is an integer number (767935350).

Almost surely, 280934910056 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 80934910056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147443587200).

80934910056 is an abundant number, since it is smaller than the sum of its proper divisors (213952264344).

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

80934910056 is a wasteful number, since it uses less digits than its factorization.

80934910056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2242 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 80934910056 in words is "eighty billion, nine hundred thirty-four million, nine hundred ten thousand, fifty-six".