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331394818080 = 25352925194849
BaseRepresentation
bin1001101001010001010…
…10111010000000100000
31011200101110211000211010
410310220222322000200
520412144033134310
6412123553020520
732641162322244
oct4645052720040
91150343730733
10331394818080
111185a880a847
1254287554740
1325334179941
141207a910424
1589489a7320
hex4d28aba020

331394818080 has 192 divisors, whose sum is σ = 1084203792000. Its totient is φ = 84983808000.

The previous prime is 331394818021. The next prime is 331394818091. The reversal of 331394818080 is 80818493133.

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 31 ways as a sum of consecutive naturals, for example, 3446496 + ... + 3541344.

It is an arithmetic number, because the mean of its divisors is an integer number (5646894750).

Almost surely, 2331394818080 is an apocalyptic number.

331394818080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331394818080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542101896000).

331394818080 is an abundant number, since it is smaller than the sum of its proper divisors (752808973920).

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

331394818080 is a wasteful number, since it uses less digits than its factorization.

331394818080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95147 (or 95139 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 331394818080 in words is "three hundred thirty-one billion, three hundred ninety-four million, eight hundred eighteen thousand, eighty".