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330130881 = 3236681209
BaseRepresentation
bin10011101011010…
…110010111000001
3212000012101102200
4103223112113001
51134003142011
652431503413
711116031463
oct2353262701
9760171380
10330130881
1115a394243
1292687b69
135351a522
1431bb8133
151deb1856
hex13ad65c1

330130881 has 6 divisors (see below), whose sum is σ = 476855730. Its totient is φ = 220087248.

The previous prime is 330130877. The next prime is 330130897. The reversal of 330130881 is 188031033.

It can be written as a sum of positive squares in only one way, i.e., 243640881 + 86490000 = 15609^2 + 9300^2 .

It is not a de Polignac number, because 330130881 - 22 = 330130877 is a prime.

It is a super-2 number, since 2×3301308812 = 217972797179672322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (330130861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18340596 + ... + 18340613.

It is an arithmetic number, because the mean of its divisors is an integer number (79475955).

Almost surely, 2330130881 is an apocalyptic number.

It is an amenable number.

330130881 is a deficient number, since it is larger than the sum of its proper divisors (146724849).

330130881 is a wasteful number, since it uses less digits than its factorization.

330130881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36681215 (or 36681212 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 330130881 is about 18169.5041484351. The cubic root of 330130881 is about 691.1336688152.

The spelling of 330130881 in words is "three hundred thirty million, one hundred thirty thousand, eight hundred eighty-one".

Divisors: 1 3 9 36681209 110043627 330130881