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350026681 = 5323532
BaseRepresentation
bin10100110111001…
…111101110111001
3220101122012100011
4110313033232321
51204101323211
654422141521
711450114644
oct2467175671
9811565304
10350026681
1116a643254
12992818a1
13576953a4
14346b6a5b
1520ae1921
hex14dcfbb9

350026681 has 9 divisors (see below), whose sum is σ = 357769069. Its totient is φ = 342449536.

The previous prime is 350026679. The next prime is 350026709. The reversal of 350026681 is 186620053.

The square root of 350026681 is 18709.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 6295081 + 343731600 = 2509^2 + 18540^2 .

It is not a de Polignac number, because 350026681 - 21 = 350026679 is a prime.

It is a super-2 number, since 2×3500266812 = 245037354823751522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350026631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 991401 + ... + 991753.

Almost surely, 2350026681 is an apocalyptic number.

350026681 is the 18709-th square number.

350026681 is the 9355-th centered octagonal number.

It is an amenable number.

350026681 is a deficient number, since it is larger than the sum of its proper divisors (7742388).

350026681 is an frugal number, since it uses more digits than its factorization.

350026681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The cubic root of 350026681 is about 704.7477802731.

The spelling of 350026681 in words is "three hundred fifty million, twenty-six thousand, six hundred eighty-one".

Divisors: 1 53 353 2809 18709 124609 991577 6604277 350026681