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1994830272 = 263213126437
BaseRepresentation
bin111011011100110…
…1011000111000000
312011000121212200200
41312321223013000
513041134032042
6525540045200
7100301530461
oct16671530700
95130555620
101994830272
11934036566
12478093800
1325a387256
1414cd10d68
15ba1e0c4c
hex76e6b1c0

1994830272 has 84 divisors (see below), whose sum is σ = 5761686216. Its totient is φ = 659842560.

The previous prime is 1994830249. The next prime is 1994830289. The reversal of 1994830272 is 2720384991.

1994830272 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62238 + ... + 88674.

Almost surely, 21994830272 is an apocalyptic number.

1994830272 is a gapful number since it is divisible by the number (12) 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 1994830272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2880843108).

1994830272 is an abundant number, since it is smaller than the sum of its proper divisors (3766855944).

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

1994830272 is a wasteful number, since it uses less digits than its factorization.

1994830272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26586 (or 26573 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1994830272 is about 44663.5228346354. The cubic root of 1994830272 is about 1258.8345383400.

The spelling of 1994830272 in words is "one billion, nine hundred ninety-four million, eight hundred thirty thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 131 144 192 262 288 393 524 576 786 1048 1179 1572 2096 2358 3144 4192 4716 6288 8384 9432 12576 18864 25152 26437 37728 52874 75456 79311 105748 158622 211496 237933 317244 422992 475866 634488 845984 951732 1268976 1691968 1903464 2537952 3463247 3806928 5075904 6926494 7613856 10389741 13852988 15227712 20779482 27705976 31169223 41558964 55411952 62338446 83117928 110823904 124676892 166235856 221647808 249353784 332471712 498707568 664943424 997415136 1994830272