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3144020311 = 5695525519
BaseRepresentation
bin1011101101100101…
…1111000101010111
322010010000210001201
42323121133011113
522414332122221
61235551133331
7140624505655
oct27331370527
98103023051
103144020311
111373798aa3
12738b14247
133b149b763
1421b7b5dd5
15136041891
hexbb65f157

3144020311 has 4 divisors (see below), whose sum is σ = 3149546400. Its totient is φ = 3138494224.

The previous prime is 3144020251. The next prime is 3144020317. The reversal of 3144020311 is 1130204413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3144020311 - 27 = 3144020183 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 (3144020317) 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, 2762191 + ... + 2763328.

It is an arithmetic number, because the mean of its divisors is an integer number (787386600).

Almost surely, 23144020311 is an apocalyptic number.

3144020311 is a deficient number, since it is larger than the sum of its proper divisors (5526089).

3144020311 is an equidigital number, since it uses as much as digits as its factorization.

3144020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526088.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3144020311 is about 56071.5641925566. The cubic root of 3144020311 is about 1464.9690435980.

Adding to 3144020311 its reverse (1130204413), we get a palindrome (4274224724).

The spelling of 3144020311 in words is "three billion, one hundred forty-four million, twenty thousand, three hundred eleven".

Divisors: 1 569 5525519 3144020311