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2130361 = 8325667
BaseRepresentation
bin1000001000000110111001
311000020022021
420020012321
51021132421
6113354441
724051652
oct10100671
94006267
102130361
111225632
12868a21
1359788c
143d6529
152c1341
hex2081b9

2130361 has 4 divisors (see below), whose sum is σ = 2156112. Its totient is φ = 2104612.

The previous prime is 2130347. The next prime is 2130367. The reversal of 2130361 is 1630312.

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.

It is a cyclic number.

It is not a de Polignac number, because 2130361 - 29 = 2129849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12751 + ... + 12916.

It is an arithmetic number, because the mean of its divisors is an integer number (539028).

22130361 is an apocalyptic number.

It is an amenable number.

2130361 is a deficient number, since it is larger than the sum of its proper divisors (25751).

2130361 is an equidigital number, since it uses as much as digits as its factorization.

2130361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25750.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2130361 is about 1459.5756232549. The cubic root of 2130361 is about 128.6721035702.

Adding to 2130361 its reverse (1630312), we get a palindrome (3760673).

The spelling of 2130361 in words is "two million, one hundred thirty thousand, three hundred sixty-one".

Divisors: 1 83 25667 2130361