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2108982686 = 23011350213
BaseRepresentation
bin111110110110100…
…1000010110011110
312102222102102100212
41331231020112132
513304344421221
6545134452422
7103156025366
oct17555102636
95388372325
102108982686
119925139a8
124aa364112
13277c14665
141601479a6
15c523db5b
hex7db4859e

2108982686 has 8 divisors (see below), whose sum is σ = 3164533704. Its totient is φ = 1054138120.

The previous prime is 2108982683. The next prime is 2108982709. The reversal of 2108982686 is 6862898012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108982683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169085 + ... + 181128.

It is an arithmetic number, because the mean of its divisors is an integer number (395566713).

Almost surely, 22108982686 is an apocalyptic number.

2108982686 is a deficient number, since it is larger than the sum of its proper divisors (1055551018).

2108982686 is a wasteful number, since it uses less digits than its factorization.

2108982686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353226.

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 2108982686 is about 45923.6615047189. The cubic root of 2108982686 is about 1282.4024472256.

The spelling of 2108982686 in words is "two billion, one hundred eight million, nine hundred eighty-two thousand, six hundred eighty-six".

Divisors: 1 2 3011 6022 350213 700426 1054491343 2108982686