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2101983122 = 217219072
BaseRepresentation
bin111110101001001…
…1011011110010010
312102111020210202202
41331102123132102
513301101424442
6544324443202
7103042363451
oct17522333622
95374223682
102101983122
11989573038
124a7b49502
132766336c5
1415d244b98
15c4809c32
hex7d49b792

2101983122 has 18 divisors (see below), whose sum is σ = 3351110997. Its totient is φ = 988649824.

The previous prime is 2101983101. The next prime is 2101983131. The reversal of 2101983122 is 2213891012.

It can be written as a sum of positive squares in 2 ways, for example, as 1923787321 + 178195801 = 43861^2 + 13349^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=32419.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1101293 + ... + 1103199.

Almost surely, 22101983122 is an apocalyptic number.

2101983122 is a deficient number, since it is larger than the sum of its proper divisors (1249127875).

2101983122 is an frugal number, since it uses more digits than its factorization.

2101983122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 2101983122 is about 45847.3894785734. The cubic root of 2101983122 is about 1280.9821405006.

The spelling of 2101983122 in words is "two billion, one hundred one million, nine hundred eighty-three thousand, one hundred twenty-two".

Divisors: 1 2 17 34 289 578 1907 3814 32419 64838 551123 1102246 3636649 7273298 61823033 123646066 1050991561 2101983122