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10665048999 = 3111187272269
BaseRepresentation
bin10011110111010111…
…11011101110100111
31000112021011121211210
421323223323232213
5133320223031444
64522141002503
7525201264213
oct117353735647
930467147753
1010665048999
114583162190
122097853433
13100c7101a7
147325dd943
154264797b9
hex27bafbba7

10665048999 has 16 divisors (see below), whose sum is σ = 15525924480. Its totient is φ = 6458196960.

The previous prime is 10665048997. The next prime is 10665049013. The reversal of 10665048999 is 99984056601.

It is not a de Polignac number, because 10665048999 - 21 = 10665048997 is a prime.

It is a super-2 number, since 2×106650489992 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10665048997) 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, 96964 + ... + 175305.

It is an arithmetic number, because the mean of its divisors is an integer number (970370280).

Almost surely, 210665048999 is an apocalyptic number.

10665048999 is a deficient number, since it is larger than the sum of its proper divisors (4860875481).

10665048999 is a wasteful number, since it uses less digits than its factorization.

10665048999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273470.

The product of its (nonzero) digits is 4199040, while the sum is 57.

The spelling of 10665048999 in words is "ten billion, six hundred sixty-five million, forty-eight thousand, nine hundred ninety-nine".

Divisors: 1 3 11 33 1187 3561 13057 39171 272269 816807 2994959 8984877 323183303 969549909 3555016333 10665048999