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2120159 = 53109367
BaseRepresentation
bin1000000101100111011111
310222201022102
420011213133
51020321114
6113235315
724010136
oct10054737
93881272
102120159
1112189a8
12862b3b
13593042
143d291d
152bd2de
hex2059df

2120159 has 8 divisors (see below), whose sum is σ = 2185920. Its totient is φ = 2055456.

The previous prime is 2120147. The next prime is 2120171. The reversal of 2120159 is 9510212.

It is an interprime number because it is at equal distance from previous prime (2120147) and next prime (2120171).

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 2120159 - 24 = 2120143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120119) 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, 5594 + ... + 5960.

It is an arithmetic number, because the mean of its divisors is an integer number (273240).

22120159 is an apocalyptic number.

2120159 is a deficient number, since it is larger than the sum of its proper divisors (65761).

2120159 is a wasteful number, since it uses less digits than its factorization.

2120159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2120159 is about 1456.0765776565. The cubic root of 2120159 is about 128.4663772701.

The spelling of 2120159 in words is "two million, one hundred twenty thousand, one hundred fifty-nine".

Divisors: 1 53 109 367 5777 19451 40003 2120159