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80000069139360 = 25385443172027
BaseRepresentation
bin10010001100001001110111…
…101100111111101110100000
3101111020221011100221200000000
4102030021313230333232200
540441210120144424420
6442051305134300000
722564546201600656
oct2214116754775640
9344227140850000
1080000069139360
1123543925482607
128b80671357600
133583c8828c096
1415a8049c30dd6
1593aebaa44690
hex48c277b3fba0

80000069139360 has 432 divisors, whose sum is σ = 284127416235936. Its totient is φ = 21285071488512.

The previous prime is 80000069139343. The next prime is 80000069139373. The reversal of 80000069139360 is 6393196000008.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×800000691393602 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 464957667 + ... + 465129693.

It is an arithmetic number, because the mean of its divisors is an integer number (657702352398).

Almost surely, 280000069139360 is an apocalyptic number.

80000069139360 is a gapful number since it is divisible by the number (80) 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 80000069139360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142063708117968).

80000069139360 is an abundant number, since it is smaller than the sum of its proper divisors (204127347096576).

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

80000069139360 is an equidigital number, since it uses as much as digits as its factorization.

80000069139360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172509 (or 172480 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 80000069139360 in words is "eighty trillion, sixty-nine million, one hundred thirty-nine thousand, three hundred sixty".