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351020061 = 3877643
BaseRepresentation
bin10100111011000…
…010010000011101
3220110111200000000
4110323002100131
51204330120221
654455324513
711461423050
oct2473022035
9813450000
10351020061
11170161627
1299680739
13579525a2
1434894a97
1520c3ae26
hex14ec241d

351020061 has 36 divisors (see below), whose sum is σ = 601796832. Its totient is φ = 200556648.

The previous prime is 351020057. The next prime is 351020071. The reversal of 351020061 is 160020153.

It is not a de Polignac number, because 351020061 - 22 = 351020057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351020071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42106 + ... + 49748.

Almost surely, 2351020061 is an apocalyptic number.

It is an amenable number.

351020061 is a deficient number, since it is larger than the sum of its proper divisors (250776771).

351020061 is an frugal number, since it uses more digits than its factorization.

351020061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674 (or 7653 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 351020061 is about 18735.5293760278. The cubic root of 351020061 is about 705.4138448423.

The spelling of 351020061 in words is "three hundred fifty-one million, twenty thousand, sixty-one".

Divisors: 1 3 7 9 21 27 63 81 189 243 567 729 1701 2187 5103 6561 7643 15309 22929 45927 53501 68787 160503 206361 481509 619083 1444527 1857249 4333581 5571747 13000743 16715241 39002229 50145723 117006687 351020061