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2838944890 = 255916728813
BaseRepresentation
bin1010100100110110…
…1101110001111010
321022211222100021001
42221031231301322
521303232214030
61145412235214
7130231430155
oct25115556172
97284870231
102838944890
111227568351
1267290bb0a
13363214762
141cd080c9c
1511937dcca
hexa936dc7a

2838944890 has 32 divisors (see below), whose sum is σ = 5228012160. Its totient is φ = 1109607744.

The previous prime is 2838944861. The next prime is 2838944921. The reversal of 2838944890 is 984498382.

It is a super-2 number, since 2×28389448902 = 16119216176914224200, which contains 22 as substring.

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, 84124 + ... + 112936.

It is an arithmetic number, because the mean of its divisors is an integer number (163375380).

Almost surely, 22838944890 is an apocalyptic number.

2838944890 is a deficient number, since it is larger than the sum of its proper divisors (2389067270).

2838944890 is a wasteful number, since it uses less digits than its factorization.

2838944890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29046.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The square root of 2838944890 is about 53281.7500651020. The cubic root of 2838944890 is about 1415.9643548780.

The spelling of 2838944890 in words is "two billion, eight hundred thirty-eight million, nine hundred forty-four thousand, eight hundred ninety".

Divisors: 1 2 5 10 59 118 167 295 334 590 835 1670 9853 19706 28813 49265 57626 98530 144065 288130 1699967 3399934 4811771 8499835 9623542 16999670 24058855 48117710 283894489 567788978 1419472445 2838944890