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1983028992 = 2837616047
BaseRepresentation
bin111011000110010…
…1001111100000000
312010012102022101020
41312030221330000
513030123411432
6524435105440
7100066316430
oct16614517400
95105368336
101983028992
1192840603a
12474142280
13257ab4849
1414b51c2c0
15b915e22c
hex76329f00

1983028992 has 144 divisors (see below), whose sum is σ = 6131607552. Its totient is φ = 557199360.

The previous prime is 1983028991. The next prime is 1983029011. The reversal of 1983028992 is 2998203891.

It is a super-2 number, since 2×19830289922 = 7864807966225072128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983028991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324913 + ... + 330959.

It is an arithmetic number, because the mean of its divisors is an integer number (42580608).

Almost surely, 21983028992 is an apocalyptic number.

1983028992 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 1983028992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3065803776).

1983028992 is an abundant number, since it is smaller than the sum of its proper divisors (4148578560).

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

1983028992 is an equidigital number, since it uses as much as digits as its factorization.

1983028992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134 (or 6120 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 1983028992 is about 44531.2136820905. The cubic root of 1983028992 is about 1256.3472338392.

The spelling of 1983028992 in words is "one billion, nine hundred eighty-three million, twenty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 61 64 84 96 112 122 128 168 183 192 224 244 256 336 366 384 427 448 488 672 732 768 854 896 976 1281 1344 1464 1708 1792 1952 2562 2688 2928 3416 3904 5124 5376 5856 6047 6832 7808 10248 11712 12094 13664 15616 18141 20496 23424 24188 27328 36282 40992 42329 46848 48376 54656 72564 81984 84658 96752 109312 126987 145128 163968 169316 193504 253974 290256 327936 338632 368867 387008 507948 580512 677264 737734 774016 1015896 1106601 1161024 1354528 1475468 1548032 2031792 2213202 2322048 2582069 2709056 2950936 4063584 4426404 4644096 5164138 5418112 5901872 7746207 8127168 8852808 10328276 10836224 11803744 15492414 16254336 17705616 20656552 23607488 30984828 32508672 35411232 41313104 47214976 61969656 70822464 82626208 94429952 123939312 141644928 165252416 247878624 283289856 330504832 495757248 661009664 991514496 1983028992