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330985057 = 1399725537
BaseRepresentation
bin10011101110100…
…110111001100001
3212001210210010211
4103232212321201
51134213010212
652502054121
711126220004
oct2356467141
9761723124
10330985057
1115a917a77
1292a1a341
1353759260
1431d5b53b
151e0ce9a7
hex13ba6e61

330985057 has 8 divisors (see below), whose sum is σ = 356816936. Its totient is φ = 305206272.

The previous prime is 330985051. The next prime is 330985063. The reversal of 330985057 is 750589033.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (330985051) and next prime (330985063).

It can be written as a sum of positive squares in 4 ways, for example, as 134536801 + 196448256 = 11599^2 + 14016^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-330985057 is a prime.

It is a super-2 number, since 2×3309850572 = 219102215914586498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (330985051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193 + ... + 25729.

It is an arithmetic number, because the mean of its divisors is an integer number (44602117).

Almost surely, 2330985057 is an apocalyptic number.

It is an amenable number.

330985057 is a deficient number, since it is larger than the sum of its proper divisors (25831879).

330985057 is a wasteful number, since it uses less digits than its factorization.

330985057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26547.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 330985057 is about 18192.9947232444. The cubic root of 330985057 is about 691.7292319721.

The spelling of 330985057 in words is "three hundred thirty million, nine hundred eighty-five thousand, fifty-seven".

Divisors: 1 13 997 12961 25537 331981 25460389 330985057