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330076681 = 1130006971
BaseRepresentation
bin10011101011001…
…001001000001001
3212000002122002021
4103223021020021
51133444423211
652430404441
711115414454
oct2353111011
9760078067
10330076681
1115a357550
1292660721
13534cb95c
1431ba249b
151dea0771
hex13ac9209

330076681 has 4 divisors (see below), whose sum is σ = 360083664. Its totient is φ = 300069700.

The previous prime is 330076631. The next prime is 330076687. The reversal of 330076681 is 186670033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 186670033 = 1116970003.

It is a cyclic number.

It is not a de Polignac number, because 330076681 - 27 = 330076553 is a prime.

It is a super-2 number, since 2×3300766812 = 217901230679951522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330076687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15003475 + ... + 15003496.

It is an arithmetic number, because the mean of its divisors is an integer number (90020916).

Almost surely, 2330076681 is an apocalyptic number.

It is an amenable number.

330076681 is a deficient number, since it is larger than the sum of its proper divisors (30006983).

330076681 is a wasteful number, since it uses less digits than its factorization.

330076681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30006982.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 330076681 is about 18168.0125770542. The cubic root of 330076681 is about 691.0958439229.

The spelling of 330076681 in words is "three hundred thirty million, seventy-six thousand, six hundred eighty-one".

Divisors: 1 11 30006971 330076681