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10993290091 = 7217311972161
BaseRepresentation
bin10100011110100000…
…00100101101101011
31001101010210222222021
422033100010231223
5140003240240331
65014504205311
7536265265300
oct121720045553
931333728867
1010993290091
114731475613
122169769837
1310627184a4
147640450a7
154451b6211
hex28f404b6b

10993290091 has 48 divisors (see below), whose sum is σ = 14054591232. Its totient is φ = 8534937600.

The previous prime is 10993290073. The next prime is 10993290127. The reversal of 10993290091 is 19009239901.

It is not a de Polignac number, because 10993290091 - 231 = 8845806443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10993290071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5086051 + ... + 5088211.

It is an arithmetic number, because the mean of its divisors is an integer number (292803984).

Almost surely, 210993290091 is an apocalyptic number.

10993290091 is a deficient number, since it is larger than the sum of its proper divisors (3061301141).

10993290091 is a wasteful number, since it uses less digits than its factorization.

10993290091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420 (or 2413 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 43.

The spelling of 10993290091 in words is "ten billion, nine hundred ninety-three million, two hundred ninety thousand, ninety-one".

Divisors: 1 7 17 31 49 119 197 217 527 833 1379 1519 2161 3349 3689 6107 9653 15127 23443 25823 36737 42749 66991 103819 105889 164101 257159 299243 425717 468937 726733 1138847 1800113 2980019 3282559 5087131 7237189 7971929 13197227 20860133 50660323 55803503 92380589 224352859 354622261 646664123 1570470013 10993290091