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1980850910 = 25198085091
BaseRepresentation
bin111011000010001…
…0110001011011110
312010001022122121112
41312010112023132
513024044212120
6524320302022
7100041645353
oct16604261336
95101278545
101980850910
11927158675
12473471912
1325750133c
1414b11262a
15b8d7dbc5
hex761162de

1980850910 has 8 divisors (see below), whose sum is σ = 3565531656. Its totient is φ = 792340360.

The previous prime is 1980850903. The next prime is 1980850933. The reversal of 1980850910 is 190580891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99042536 + ... + 99042555.

It is an arithmetic number, because the mean of its divisors is an integer number (445691457).

Almost surely, 21980850910 is an apocalyptic number.

1980850910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1980850910 is a deficient number, since it is larger than the sum of its proper divisors (1584680746).

1980850910 is a wasteful number, since it uses less digits than its factorization.

1980850910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198085098.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 1980850910 is about 44506.7512856196. The cubic root of 1980850910 is about 1255.8870910004.

The spelling of 1980850910 in words is "one billion, nine hundred eighty million, eight hundred fifty thousand, nine hundred ten".

Divisors: 1 2 5 10 198085091 396170182 990425455 1980850910