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330231329 = 1651919991
BaseRepresentation
bin10011101011101…
…110111000100001
3212000101111012222
4103223232320201
51134014400304
652434000425
711116630361
oct2353567041
9760344188
10330231329
1115a45275a
1292716115
135355416c
1431c029a1
151ded14be
hex13aeee21

330231329 has 4 divisors (see below), whose sum is σ = 330267840. Its totient is φ = 330194820.

The previous prime is 330231283. The next prime is 330231337. The reversal of 330231329 is 923132033.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 923132033 = 1496195517.

It is a cyclic number.

It is not a de Polignac number, because 330231329 - 28 = 330231073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 330231298 and 330231307.

It is not an unprimeable number, because it can be changed into a prime (330201329) 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, 6524 + ... + 26514.

It is an arithmetic number, because the mean of its divisors is an integer number (82566960).

Almost surely, 2330231329 is an apocalyptic number.

It is an amenable number.

330231329 is a deficient number, since it is larger than the sum of its proper divisors (36511).

330231329 is a wasteful number, since it uses less digits than its factorization.

330231329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36510.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 330231329 is about 18172.2681303133. The cubic root of 330231329 is about 691.2037581433.

The spelling of 330231329 in words is "three hundred thirty million, two hundred thirty-one thousand, three hundred twenty-nine".

Divisors: 1 16519 19991 330231329