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2130629 = 3835563
BaseRepresentation
bin1000001000001011000101
311000020200012
420020023011
51021140004
6113400005
724052514
oct10101305
94006605
102130629
111225856
12869005
13597a37
143d667b
152c146e
hex2082c5

2130629 has 4 divisors (see below), whose sum is σ = 2136576. Its totient is φ = 2124684.

The previous prime is 2130619. The next prime is 2130631. The reversal of 2130629 is 9260312.

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 2130629 - 24 = 2130613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130619) 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, 2399 + ... + 3164.

It is an arithmetic number, because the mean of its divisors is an integer number (534144).

22130629 is an apocalyptic number.

It is an amenable number.

2130629 is a deficient number, since it is larger than the sum of its proper divisors (5947).

2130629 is an equidigital number, since it uses as much as digits as its factorization.

2130629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2130629 is about 1459.6674278753. The cubic root of 2130629 is about 128.6774990060.

The spelling of 2130629 in words is "two million, one hundred thirty thousand, six hundred twenty-nine".

Divisors: 1 383 5563 2130629