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2149075 = 52314759
BaseRepresentation
bin1000001100101011010011
311001011222101
420030223103
51022232300
6114021231
724160345
oct10145323
94034871
102149075
1112386a5
12877817
135a3256
143dd295
152c6b6a
hex20cad3

2149075 has 24 divisors (see below), whose sum is σ = 2856960. Its totient is φ = 1600800.

The previous prime is 2149067. The next prime is 2149087. The reversal of 2149075 is 5709412.

It is a happy number.

It is not a de Polignac number, because 2149075 - 23 = 2149067 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36396 + ... + 36454.

It is an arithmetic number, because the mean of its divisors is an integer number (119040).

22149075 is an apocalyptic number.

2149075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2149075 is a deficient number, since it is larger than the sum of its proper divisors (707885).

2149075 is a wasteful number, since it uses less digits than its factorization.

2149075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2149075 is about 1465.9723735460. The cubic root of 2149075 is about 129.0477759059.

The spelling of 2149075 in words is "two million, one hundred forty-nine thousand, seventy-five".

Divisors: 1 5 25 31 47 59 155 235 295 775 1175 1457 1475 1829 2773 7285 9145 13865 36425 45725 69325 85963 429815 2149075