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10491030080 = 265110329723
BaseRepresentation
bin10011100010101000…
…00110101001000000
31000002010201112202122
421301110012221000
5132441200430310
64453003103412
7520656166346
oct116124065100
930063645678
1010491030080
1144a3a051a3
122049511b68
13cb265180b
14717461996
15416053555
hex271506a40

10491030080 has 56 divisors (see below), whose sum is σ = 25005255552. Its totient is φ = 4192466432.

The previous prime is 10491030079. The next prime is 10491030091. The reversal of 10491030080 is 8003019401.

It is a super-2 number, since 2×104910300802 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338099 + ... + 367821.

Almost surely, 210491030080 is an apocalyptic number.

10491030080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10491030080 is an abundant number, since it is smaller than the sum of its proper divisors (14514225472).

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

10491030080 is a wasteful number, since it uses less digits than its factorization.

10491030080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30843 (or 30833 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 10491030080 its reverse (8003019401), we get a palindrome (18494049481).

The spelling of 10491030080 in words is "ten billion, four hundred ninety-one million, thirty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 1103 2206 4412 5515 8824 11030 17648 22060 29723 35296 44120 59446 70592 88240 118892 148615 176480 237784 297230 352960 475568 594460 951136 1188920 1902272 2377840 4755680 9511360 32784469 65568938 131137876 163922345 262275752 327844690 524551504 655689380 1049103008 1311378760 2098206016 2622757520 5245515040 10491030080