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8680890990 = 235289363033
BaseRepresentation
bin10000001010110101…
…11110001001101110
3211101222121221202010
420011122332021232
5120234302002430
63553221342050
7425056233042
oct100532761156
924358557663
108680890990
113755155982
121823267926
13a846217b5
145c4caa022
1535c195cb0
hex2056be26e

8680890990 has 16 divisors (see below), whose sum is σ = 20834138448. Its totient is φ = 2314904256.

The previous prime is 8680890947. The next prime is 8680891003. The reversal of 8680890990 is 990980868.

8680890990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8680890990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144681487 + ... + 144681546.

It is an arithmetic number, because the mean of its divisors is an integer number (1302133653).

Almost surely, 28680890990 is an apocalyptic number.

8680890990 is an abundant number, since it is smaller than the sum of its proper divisors (12153247458).

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

8680890990 is a wasteful number, since it uses less digits than its factorization.

8680890990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289363043.

The product of its (nonzero) digits is 2239488, while the sum is 57.

The square root of 8680890990 is about 93171.2991752288. The cubic root of 8680890990 is about 2055.2032003470.

The spelling of 8680890990 in words is "eight billion, six hundred eighty million, eight hundred ninety thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 289363033 578726066 868089099 1446815165 1736178198 2893630330 4340445495 8680890990