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10918200091 = 101178760493
BaseRepresentation
bin10100010101100011…
…01000001100011011
31001011220112000212011
422022301220030123
5134330024400331
65003222530351
7534364112101
oct121261501433
931156460764
1010918200091
1146a3048367
1221485969b7
13104ccb6c36
14758099c71
1543d7d23b1
hex28ac6831b

10918200091 has 8 divisors (see below), whose sum is σ = 11032653744. Its totient is φ = 10803871200.

The previous prime is 10918200077. The next prime is 10918200103. The reversal of 10918200091 is 19000281901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10918200091 - 231 = 8770716443 is a prime.

It is a super-2 number, since 2×109182000912 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10918200191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150241 + ... + 210733.

It is an arithmetic number, because the mean of its divisors is an integer number (1379081718).

Almost surely, 210918200091 is an apocalyptic number.

10918200091 is a deficient number, since it is larger than the sum of its proper divisors (114453653).

10918200091 is a wasteful number, since it uses less digits than its factorization.

10918200091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62381.

The product of its (nonzero) digits is 1296, while the sum is 31.

Adding to 10918200091 its reverse (19000281901), we get a palindrome (29918481992).

The spelling of 10918200091 in words is "ten billion, nine hundred eighteen million, two hundred thousand, ninety-one".

Divisors: 1 101 1787 60493 180487 6109793 108100991 10918200091