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2930129 = 10692741
BaseRepresentation
bin1011001011010111010001
312111212101022
423023113101
51222231004
6142445225
733622436
oct13132721
95455338
102930129
1117214a4
12b93815
137b7907
14563b8d
153cd2be
hex2cb5d1

2930129 has 4 divisors (see below), whose sum is σ = 2933940. Its totient is φ = 2926320.

The previous prime is 2930119. The next prime is 2930153. The reversal of 2930129 is 9210392.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1113025 + 1817104 = 1055^2 + 1348^2 .

It is a cyclic number.

It is not a de Polignac number, because 2930129 - 24 = 2930113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2930098 and 2930107.

It is not an unprimeable number, because it can be changed into a prime (2930119) 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, 302 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (733485).

22930129 is an apocalyptic number.

It is an amenable number.

2930129 is a deficient number, since it is larger than the sum of its proper divisors (3811).

2930129 is a wasteful number, since it uses less digits than its factorization.

2930129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2930129 is about 1711.7619577500. The cubic root of 2930129 is about 143.0964677461.

The spelling of 2930129 in words is "two million, nine hundred thirty thousand, one hundred twenty-nine".

Divisors: 1 1069 2741 2930129