Search a number
-
+
1996184220 = 223541811457
BaseRepresentation
bin111011011111011…
…0101101010011100
312011010011122221220
41312332311222130
513042010343340
6530025053340
7100316200032
oct16676655234
95133148856
101996184220
11934880828
12478627250
1325a73c5c4
1414d184552
15ba3abed0
hex76fb5a9c

1996184220 has 48 divisors (see below), whose sum is σ = 5725647648. Its totient is φ = 519331840.

The previous prime is 1996184167. The next prime is 1996184263. The reversal of 1996184220 is 224816991.

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, 403269 + ... + 408188.

It is an arithmetic number, because the mean of its divisors is an integer number (119284326).

Almost surely, 21996184220 is an apocalyptic number.

1996184220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1996184220 is an abundant number, since it is smaller than the sum of its proper divisors (3729463428).

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

1996184220 is a wasteful number, since it uses less digits than its factorization.

1996184220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811510 (or 811508 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1996184220 is about 44678.6774647594. The cubic root of 1996184220 is about 1259.1192761892.

The spelling of 1996184220 in words is "one billion, nine hundred ninety-six million, one hundred eighty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 811457 1622914 2434371 3245828 4057285 4868742 8114570 9737484 12171855 16229140 24343710 33269737 48687420 66539474 99809211 133078948 166348685 199618422 332697370 399236844 499046055 665394740 998092110 1996184220