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7390060660 = 2251237298709
BaseRepresentation
bin1101110000111101…
…10110000001110100
3201002000200222102101
412320132312001310
5110113323420120
63221150351444
7351063323233
oct67036660164
921060628371
107390060660
113152550a54
121522abb584
1390a077478
14501694b1a
152d3bb790a
hex1b87b6074

7390060660 has 24 divisors (see below), whose sum is σ = 15531725160. Its totient is φ = 2953624704.

The previous prime is 7390060607. The next prime is 7390060661. The reversal of 7390060660 is 660600937.

It can be written as a sum of positive squares in 4 ways, for example, as 831976336 + 6558084324 = 28844^2 + 80982^2 .

It is a super-3 number, since 3×73900606603 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7390060661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124615 + ... + 174094.

It is an arithmetic number, because the mean of its divisors is an integer number (647155215).

Almost surely, 27390060660 is an apocalyptic number.

It is an amenable number.

7390060660 is an abundant number, since it is smaller than the sum of its proper divisors (8141664500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7390060660 is a wasteful number, since it uses less digits than its factorization.

7390060660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299955 (or 299953 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 7390060660 is about 85965.4620181850. The cubic root of 7390060660 is about 1947.8223035293.

The spelling of 7390060660 in words is "seven billion, three hundred ninety million, sixty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 1237 2474 4948 6185 12370 24740 298709 597418 1194836 1493545 2987090 5974180 369503033 739006066 1478012132 1847515165 3695030330 7390060660