Search a number
-
+
1790142768 = 24344729389
BaseRepresentation
bin110101010110011…
…0110100100110000
311121202110200020000
41222230312210300
512131234032033
6453344550000
762234651061
oct15254664460
94552420200
101790142768
11839541837
1241b622300
13226b4b49b
1412da6c568
15a725ca13
hex6ab36930

1790142768 has 100 divisors (see below), whose sum is σ = 5291610720. Its totient is φ = 583998336.

The previous prime is 1790142751. The next prime is 1790142791. The reversal of 1790142768 is 8672410971.

It is a happy number.

It is a super-2 number, since 2×17901427682 = 6409222259645403648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46218 + ... + 75606.

Almost surely, 21790142768 is an apocalyptic number.

1790142768 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 1790142768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2645805360).

1790142768 is an abundant number, since it is smaller than the sum of its proper divisors (3501467952).

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

1790142768 is a wasteful number, since it uses less digits than its factorization.

1790142768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29456 (or 29441 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1790142768 is about 42310.0787992648. The cubic root of 1790142768 is about 1214.2158268718.

The spelling of 1790142768 in words is "one billion, seven hundred ninety million, one hundred forty-two thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 47 48 54 72 81 94 108 141 144 162 188 216 282 324 376 423 432 564 648 752 846 1128 1269 1296 1692 2256 2538 3384 3807 5076 6768 7614 10152 15228 20304 29389 30456 58778 60912 88167 117556 176334 235112 264501 352668 470224 529002 705336 793503 1058004 1381283 1410672 1587006 2116008 2380509 2762566 3174012 4143849 4232016 4761018 5525132 6348024 8287698 9522036 11050264 12431547 12696048 16575396 19044072 22100528 24863094 33150792 37294641 38088144 49726188 66301584 74589282 99452376 111883923 149178564 198904752 223767846 298357128 447535692 596714256 895071384 1790142768