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2141841980 = 2252934391
BaseRepresentation
bin111111110101001…
…1110101000111100
312112021020211211202
41333222132220330
513341302420410
6552311035032
7104035233155
oct17752365074
95467224752
102141841980
119aa017643
124b936ba78
1328197ac25
1416465c92c
15c807eca5
hex7fa9ea3c

2141841980 has 48 divisors (see below), whose sum is σ = 4659560640. Its totient is φ = 827005760.

The previous prime is 2141841979. The next prime is 2141841991. The reversal of 2141841980 is 891481412.

It is a congruent number.

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, 485585 + ... + 489975.

It is an arithmetic number, because the mean of its divisors is an integer number (97074180).

Almost surely, 22141841980 is an apocalyptic number.

2141841980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2141841980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2329780320).

2141841980 is an abundant number, since it is smaller than the sum of its proper divisors (2517718660).

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

2141841980 is an equidigital number, since it uses as much as digits as its factorization.

2141841980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 2141841980 is about 46280.0386775984. The cubic root of 2141841980 is about 1289.0283691645.

The spelling of 2141841980 in words is "two billion, one hundred forty-one million, eight hundred forty-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 841 1682 3364 4205 4391 8410 8782 16820 17564 21955 24389 43910 48778 87820 97556 121945 127339 243890 254678 487780 509356 636695 1273390 2546780 3692831 7385662 14771324 18464155 36928310 73856620 107092099 214184198 428368396 535460495 1070920990 2141841980