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2107969108 = 22775284611
BaseRepresentation
bin111110110100101…
…0000111001010100
312102220111220222221
41331221100321110
513304120002413
6545101032124
7103144304350
oct17551207124
95386456887
102107969108
11991991433
124a9b55644
1327794b1cb
1415dd62460
15c50dd68d
hex7da50e54

2107969108 has 12 divisors (see below), whose sum is σ = 4215938272. Its totient is φ = 903415320.

The previous prime is 2107969103. The next prime is 2107969141. The reversal of 2107969108 is 8019697012.

2107969108 is an admirable number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2107969103) 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, 37642278 + ... + 37642333.

Almost surely, 22107969108 is an apocalyptic number.

2107969108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2107969108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2107969108 is a wasteful number, since it uses less digits than its factorization.

2107969108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75284622 (or 75284620 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 2107969108 is about 45912.6247125995. The cubic root of 2107969108 is about 1282.1969732464.

The spelling of 2107969108 in words is "two billion, one hundred seven million, nine hundred sixty-nine thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 75284611 150569222 301138444 526992277 1053984554 2107969108