Search a number
-
+
1994883480 = 2332531178753
BaseRepresentation
bin111011011100111…
…1000000110011000
312011000201120200100
41312321320012120
513041142232410
6525541135400
7100302141552
oct16671700630
95130646610
101994883480
11934072537
124780ba560
1325a3a5535
1414cd264d2
15ba2018c0
hex76e78198

1994883480 has 96 divisors (see below), whose sum is σ = 6692549760. Its totient is φ = 514805760.

The previous prime is 1994883461. The next prime is 1994883481. The reversal of 1994883480 is 843884991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994883481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78217 + ... + 100536.

It is an arithmetic number, because the mean of its divisors is an integer number (69714060).

Almost surely, 21994883480 is an apocalyptic number.

1994883480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1994883480 is an abundant number, since it is smaller than the sum of its proper divisors (4697666280).

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

1994883480 is a wasteful number, since it uses less digits than its factorization.

1994883480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178801 (or 178794 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 1994883480 is about 44664.1184845285. The cubic root of 1994883480 is about 1258.8457305157.

The spelling of 1994883480 in words is "one billion, nine hundred ninety-four million, eight hundred eighty-three thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 31 36 40 45 60 62 72 90 93 120 124 155 180 186 248 279 310 360 372 465 558 620 744 930 1116 1240 1395 1860 2232 2790 3720 5580 11160 178753 357506 536259 715012 893765 1072518 1430024 1608777 1787530 2145036 2681295 3217554 3575060 4290072 5362590 5541343 6435108 7150120 8043885 10725180 11082686 12870216 16087770 16624029 21450360 22165372 27706715 32175540 33248058 44330744 49872087 55413430 64351080 66496116 83120145 99744174 110826860 132992232 166240290 199488348 221653720 249360435 332480580 398976696 498720870 664961160 997441740 1994883480