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1984954968 = 2332131389541
BaseRepresentation
bin111011001010000…
…0000001001011000
312010100001011022200
41312110000021120
513031122024333
6524544250200
7100121560503
oct16624001130
95110034280
101984954968
11929501057
12474910960
1325830a389
1414b8a013a
15b93dec13
hex76500258

1984954968 has 96 divisors (see below), whose sum is σ = 5440921200. Its totient is φ = 653702400.

The previous prime is 1984954913. The next prime is 1984954981. The reversal of 1984954968 is 8694594891.

1984954968 is a `hidden beast` number, since 1 + 9 + 84 + 9 + 549 + 6 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3668778 + ... + 3669318.

Almost surely, 21984954968 is an apocalyptic number.

1984954968 is a gapful number since it is divisible by the number (18) 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 1984954968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2720460600).

1984954968 is an abundant number, since it is smaller than the sum of its proper divisors (3455966232).

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

1984954968 is a wasteful number, since it uses less digits than its factorization.

1984954968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1066 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The square root of 1984954968 is about 44552.8334452479. The cubic root of 1984954968 is about 1256.7538360107.

The spelling of 1984954968 in words is "one billion, nine hundred eighty-four million, nine hundred fifty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 131 262 389 393 524 541 778 786 1048 1082 1167 1179 1556 1572 1623 2164 2334 2358 3112 3144 3246 3501 4328 4668 4716 4869 6492 7002 9336 9432 9738 12984 14004 19476 28008 38952 50959 70871 101918 141742 152877 203836 210449 212613 283484 305754 407672 420898 425226 458631 566968 611508 631347 637839 841796 850452 917262 1223016 1262694 1275678 1683592 1700904 1834524 1894041 2525388 2551356 3669048 3788082 5050776 5102712 7576164 15152328 27568819 55137638 82706457 110275276 165412914 220550552 248119371 330825828 496238742 661651656 992477484 1984954968