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3012343131 = 37143444911
BaseRepresentation
bin1011001110001100…
…1011010101011011
321202221020212221010
42303203023111123
522132124440011
61214524545003
7134435331330
oct26343132533
97687225833
103012343131
111306430a86
127009b2163
13390116775
142080da987
151296d11a6
hexb38cb55b

3012343131 has 8 divisors (see below), whose sum is σ = 4590237184. Its totient is φ = 1721338920.

The previous prime is 3012343127. The next prime is 3012343133. The reversal of 3012343131 is 1313432103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3012343131 - 22 = 3012343127 is a prime.

It is a super-2 number, since 2×30123431312 = 18148422277765766322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 143444911 = 3012343131 / (3 + 0 + 1 + 2 + 3 + 4 + 3 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3012343098 and 3012343107.

It is not an unprimeable number, because it can be changed into a prime (3012343133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71722435 + ... + 71722476.

It is an arithmetic number, because the mean of its divisors is an integer number (573779648).

Almost surely, 23012343131 is an apocalyptic number.

3012343131 is a deficient number, since it is larger than the sum of its proper divisors (1577894053).

3012343131 is a wasteful number, since it uses less digits than its factorization.

3012343131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143444921.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3012343131 is about 54884.8169442151. The cubic root of 3012343131 is about 1444.2248499176.

Adding to 3012343131 its reverse (1313432103), we get a palindrome (4325775234).

It can be divided in two parts, 301 and 2343131, that added together give a palindrome (2343432).

The spelling of 3012343131 in words is "three billion, twelve million, three hundred forty-three thousand, one hundred thirty-one".

Divisors: 1 3 7 21 143444911 430334733 1004114377 3012343131