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1984713948 = 223372990527
BaseRepresentation
bin111011001001100…
…0101010011011100
312010022120220201000
41312103011103130
513031041321243
6524535150300
7100116535020
oct16623052334
95108526630
101984713948
11929356a68
12474815390
13258254769
1414b83a380
15b93935d3
hex764c54dc

1984713948 has 96 divisors (see below), whose sum is σ = 6083481600. Its totient is φ = 547501248.

The previous prime is 1984713947. The next prime is 1984713971. The reversal of 1984713948 is 8493174891.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1984713894 and 1984713903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984713947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23340 + ... + 67187.

It is an arithmetic number, because the mean of its divisors is an integer number (63369600).

Almost surely, 21984713948 is an apocalyptic number.

1984713948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1984713948 is an abundant number, since it is smaller than the sum of its proper divisors (4098767652).

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

1984713948 is a wasteful number, since it uses less digits than its factorization.

1984713948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90576 (or 90568 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 1984713948 is about 44550.1284846632. The cubic root of 1984713948 is about 1256.7029675066.

The spelling of 1984713948 in words is "one billion, nine hundred eighty-four million, seven hundred thirteen thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 29 36 42 54 58 63 84 87 108 116 126 174 189 203 252 261 348 378 406 522 609 756 783 812 1044 1218 1566 1827 2436 3132 3654 5481 7308 10962 21924 90527 181054 271581 362108 543162 633689 814743 1086324 1267378 1629486 1901067 2444229 2534756 2625283 3258972 3802134 4888458 5250566 5703201 7604268 7875849 9776916 10501132 11406402 15751698 17109603 18376981 22812804 23627547 31503396 34219206 36753962 47255094 55130943 68438412 70882641 73507924 94510188 110261886 141765282 165392829 220523772 283530564 330785658 496178487 661571316 992356974 1984713948