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3994498728 = 2332116775277
BaseRepresentation
bin1110111000010111…
…0011011010101000
3101022101100120010100
43232011303122220
531140042424403
61500211545400
7200662451613
oct35605633250
911271316110
103994498728
11176a877020
129358bb260
134b874671c
1429c72117a
15185a3a2a3
hexee1736a8

3994498728 has 96 divisors (see below), whose sum is σ = 11978235360. Its totient is φ = 1192371840.

The previous prime is 3994498727. The next prime is 3994498751. The reversal of 3994498728 is 8278944993.

3994498728 is a `hidden beast` number, since 3 + 99 + 449 + 87 + 28 = 666.

It is not an unprimeable number, because it can be changed into a prime (3994498727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15426 + ... + 90702.

It is an arithmetic number, because the mean of its divisors is an integer number (124773285).

Almost surely, 23994498728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3994498728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5989117680).

3994498728 is an abundant number, since it is smaller than the sum of its proper divisors (7983736632).

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

3994498728 is a wasteful number, since it uses less digits than its factorization.

3994498728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75367 (or 75360 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 3994498728 is about 63202.0468655881. The cubic root of 3994498728 is about 1586.6729910143.

The spelling of 3994498728 in words is "three billion, nine hundred ninety-four million, four hundred ninety-eight thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 67 72 88 99 132 134 198 201 264 268 396 402 536 603 737 792 804 1206 1474 1608 2211 2412 2948 4422 4824 5896 6633 8844 13266 17688 26532 53064 75277 150554 225831 301108 451662 602216 677493 828047 903324 1354986 1656094 1806648 2484141 2709972 3312188 4968282 5043559 5419944 6624376 7452423 9936564 10087118 14904846 15130677 19873128 20174236 29809692 30261354 40348472 45392031 55479149 59619384 60522708 90784062 110958298 121045416 166437447 181568124 221916596 332874894 363136248 443833192 499312341 665749788 998624682 1331499576 1997249364 3994498728