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2130377 = 10512027
BaseRepresentation
bin1000001000000111001001
311000020022212
420020013021
51021133002
6113354505
724052004
oct10100711
94006285
102130377
111225647
12868a35
135978a2
143d653b
152c1352
hex2081c9

2130377 has 4 divisors (see below), whose sum is σ = 2133456. Its totient is φ = 2127300.

The previous prime is 2130371. The next prime is 2130379. The reversal of 2130377 is 7730312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2130377 - 210 = 2129353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (533364).

22130377 is an apocalyptic number.

It is an amenable number.

2130377 is a deficient number, since it is larger than the sum of its proper divisors (3079).

2130377 is a wasteful number, since it uses less digits than its factorization.

2130377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 2130377 is about 1459.5811042899. The cubic root of 2130377 is about 128.6724256985.

Adding to 2130377 its reverse (7730312), we get a palindrome (9860689).

The spelling of 2130377 in words is "two million, one hundred thirty thousand, three hundred seventy-seven".

Divisors: 1 1051 2027 2130377