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10199599497 = 321766664049
BaseRepresentation
bin10010111111111000…
…11000100110001001
3222022211100100011100
421133330120212021
5131342044140442
64404032452013
7510520110453
oct113774304611
928284310140
1010199599497
11436445407a
121b879aa009
13c67164399
146ca87d2d3
153ea68884c
hex25ff18989

10199599497 has 12 divisors (see below), whose sum is σ = 15599387700. Its totient is φ = 6399748608.

The previous prime is 10199599427. The next prime is 10199599517. The reversal of 10199599497 is 79499599101.

10199599497 is a `hidden beast` number, since 1 + 0 + 1 + 99 + 59 + 9 + 497 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6212434761 + 3987164736 = 78819^2 + 63144^2 .

It is not a de Polignac number, because 10199599497 - 212 = 10199595401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10199599427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33331872 + ... + 33332177.

It is an arithmetic number, because the mean of its divisors is an integer number (1299948975).

Almost surely, 210199599497 is an apocalyptic number.

10199599497 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

10199599497 is a deficient number, since it is larger than the sum of its proper divisors (5399788203).

10199599497 is a wasteful number, since it uses less digits than its factorization.

10199599497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66664072 (or 66664069 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 63.

The spelling of 10199599497 in words is "ten billion, one hundred ninety-nine million, five hundred ninety-nine thousand, four hundred ninety-seven".

Divisors: 1 3 9 17 51 153 66664049 199992147 599976441 1133288833 3399866499 10199599497