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3120434309 = 7143949779
BaseRepresentation
bin1011100111111110…
…0000110010000101
322001110122111011002
42321333200302011
522342312344214
61233345423045
7140220153056
oct27177406205
98043574132
103120434309
111361449533
1273103aa85
133a9631045
142185d672d
15133e331de
hexb9fe0c85

3120434309 has 4 divisors (see below), whose sum is σ = 3164384160. Its totient is φ = 3076484460.

The previous prime is 3120434299. The next prime is 3120434329. The reversal of 3120434309 is 9034340213.

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 3120434309 - 212 = 3120430213 is a prime.

It is a super-2 number, since 2×31204343092 = 19474220553568614962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120434329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21974819 + ... + 21974960.

It is an arithmetic number, because the mean of its divisors is an integer number (791096040).

Almost surely, 23120434309 is an apocalyptic number.

It is an amenable number.

3120434309 is a deficient number, since it is larger than the sum of its proper divisors (43949851).

3120434309 is an equidigital number, since it uses as much as digits as its factorization.

3120434309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43949850.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3120434309 is about 55860.8477289774. The cubic root of 3120434309 is about 1461.2965134597.

The spelling of 3120434309 in words is "three billion, one hundred twenty million, four hundred thirty-four thousand, three hundred nine".

Divisors: 1 71 43949779 3120434309