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8105949 = 324719163
BaseRepresentation
bin11110111010111111011101
3120020211021100
4132322333131
54033342244
6445423313
7125620335
oct36727735
916224240
108105949
114637135
12286ab39
1318aa727
1411100c5
15aa1b69
hex7bafdd

8105949 has 12 divisors (see below), whose sum is σ = 11958336. Its totient is φ = 5288712.

The previous prime is 8105941. The next prime is 8105983. The reversal of 8105949 is 9495018.

It is not a de Polignac number, because 8105949 - 23 = 8105941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8105941) 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, 9159 + ... + 10004.

It is an arithmetic number, because the mean of its divisors is an integer number (996528).

Almost surely, 28105949 is an apocalyptic number.

It is an amenable number.

8105949 is a deficient number, since it is larger than the sum of its proper divisors (3852387).

8105949 is a wasteful number, since it uses less digits than its factorization.

8105949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19216 (or 19213 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 8105949 is about 2847.0948350907. The cubic root of 8105949 is about 200.8790391241.

The spelling of 8105949 in words is "eight million, one hundred five thousand, nine hundred forty-nine".

Divisors: 1 3 9 47 141 423 19163 57489 172467 900661 2701983 8105949