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330505049 = 726745001
BaseRepresentation
bin10011101100110…
…001101101011001
3212000220101200202
4103230301231121
51134102130144
652443511545
711122150400
oct2354615531
9760811622
10330505049
1115a61a376
12928285b5
135361b924
1431c74637
151e03764e
hex13b31b59

330505049 has 6 divisors (see below), whose sum is σ = 384465114. Its totient is φ = 283290000.

The previous prime is 330505039. The next prime is 330505051. The reversal of 330505049 is 940505033.

It can be written as a sum of positive squares in only one way, i.e., 306495049 + 24010000 = 17507^2 + 4900^2 .

It is a de Polignac number, because none of the positive numbers 2k-330505049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330505039) 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, 3372452 + ... + 3372549.

It is an arithmetic number, because the mean of its divisors is an integer number (64077519).

Almost surely, 2330505049 is an apocalyptic number.

It is an amenable number.

330505049 is a deficient number, since it is larger than the sum of its proper divisors (53960065).

330505049 is an equidigital number, since it uses as much as digits as its factorization.

330505049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6745015 (or 6745008 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 330505049 is about 18179.7978261586. The cubic root of 330505049 is about 691.3946788978.

The spelling of 330505049 in words is "three hundred thirty million, five hundred five thousand, forty-nine".

Divisors: 1 7 49 6745001 47215007 330505049