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199041620 = 22527113671
BaseRepresentation
bin10111101110100…
…10001001010100
3111212112100202212
423313102021110
5401423312440
631430052552
74634553161
oct1367221124
9455470685
10199041620
11a2398a08
12567aa158
133231000b
141c613068
151271a465
hexbdd2254

199041620 has 24 divisors (see below), whose sum is σ = 418255488. Its totient is φ = 79565600.

The previous prime is 199041599. The next prime is 199041631. The reversal of 199041620 is 26140991.

199041620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52385 + ... + 56055.

It is an arithmetic number, because the mean of its divisors is an integer number (17427312).

Almost surely, 2199041620 is an apocalyptic number.

199041620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199041620 is an abundant number, since it is smaller than the sum of its proper divisors (219213868).

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

199041620 is a wasteful number, since it uses less digits than its factorization.

199041620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6391 (or 6389 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 199041620 is about 14108.2110843296. The cubic root of 199041620 is about 583.8679449025.

The spelling of 199041620 in words is "one hundred ninety-nine million, forty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 2711 3671 5422 7342 10844 13555 14684 18355 27110 36710 54220 73420 9952081 19904162 39808324 49760405 99520810 199041620