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1995220330 = 252361142211
BaseRepresentation
bin111011011101100…
…1010010101101010
312011001100200202021
41312323022111222
513041234022310
6525552255054
7100305043615
oct16673122552
95131320667
101995220330
11934282624
1247824148a
1325a49295c
1414cdb317c
15ba26b5da
hex76eca56a

1995220330 has 32 divisors (see below), whose sum is σ = 3809006208. Its totient is φ = 750868800.

The previous prime is 1995220303. The next prime is 1995220361. The reversal of 1995220330 is 330225991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57076 + ... + 85135.

It is an arithmetic number, because the mean of its divisors is an integer number (119031444).

Almost surely, 21995220330 is an apocalyptic number.

1995220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1995220330 is a deficient number, since it is larger than the sum of its proper divisors (1813785878).

1995220330 is a wasteful number, since it uses less digits than its factorization.

1995220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142302.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 1995220330 is about 44667.8892494373. The cubic root of 1995220330 is about 1258.9165814907.

The spelling of 1995220330 in words is "one billion, nine hundred ninety-five million, two hundred twenty thousand, three hundred thirty".

Divisors: 1 2 5 10 23 46 61 115 122 230 305 610 1403 2806 7015 14030 142211 284422 711055 1422110 3270853 6541706 8674871 16354265 17349742 32708530 43374355 86748710 199522033 399044066 997610165 1995220330