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350427021 = 3722972869
BaseRepresentation
bin10100111000110…
…001011110001101
3220102101112111120
4110320301132031
51204202131041
654434511153
711453403060
oct2470613615
9812345446
10350427021
1116a89700a
12994354b9
13577a5689
143477c8d7
1520b70366
hex14e3178d

350427021 has 16 divisors (see below), whose sum is σ = 536323200. Its totient is φ = 199366848.

The previous prime is 350426977. The next prime is 350427023. The reversal of 350427021 is 120724053.

It is not a de Polignac number, because 350427021 - 27 = 350426893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 350426982 and 350427000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (350427023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31626 + ... + 41243.

It is an arithmetic number, because the mean of its divisors is an integer number (33520200).

Almost surely, 2350427021 is an apocalyptic number.

It is an amenable number.

350427021 is a deficient number, since it is larger than the sum of its proper divisors (185896179).

350427021 is a wasteful number, since it uses less digits than its factorization.

350427021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73108.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 350427021 is about 18719.6960712507. The cubic root of 350427021 is about 705.0163609703.

The spelling of 350427021 in words is "three hundred fifty million, four hundred twenty-seven thousand, twenty-one".

Divisors: 1 3 7 21 229 687 1603 4809 72869 218607 510083 1530249 16687001 50061003 116809007 350427021