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2159149 = 79151181
BaseRepresentation
bin1000001111001000101101
311001200210111
420033020231
51023043044
6114140021
724231616
oct10171055
94050714
102159149
111245223
12881611
135a7a05
14402c0d
152c9b34
hex20f22d

2159149 has 8 divisors (see below), whose sum is σ = 2213120. Its totient is φ = 2106000.

The previous prime is 2159147. The next prime is 2159177. The reversal of 2159149 is 9419512.

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

It is a cyclic number.

It is not a de Polignac number, because 2159149 - 21 = 2159147 is a prime.

It is a Duffinian number.

2159149 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2159149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11839 + ... + 12019.

It is an arithmetic number, because the mean of its divisors is an integer number (276640).

22159149 is an apocalyptic number.

It is an amenable number.

2159149 is a deficient number, since it is larger than the sum of its proper divisors (53971).

2159149 is a wasteful number, since it uses less digits than its factorization.

2159149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 3240, while the sum is 31.

The square root of 2159149 is about 1469.4043010690. The cubic root of 2159149 is about 129.2491030246.

The spelling of 2159149 in words is "two million, one hundred fifty-nine thousand, one hundred forty-nine".

Divisors: 1 79 151 181 11929 14299 27331 2159149