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3126041421 = 31042013807
BaseRepresentation
bin1011101001010011…
…1001101101001101
322001212012100122220
42322110321231031
522400231311141
61234105525553
7140315625246
oct27224715515
98055170586
103126041421
111364629208
12732aa38b9
133aa845269
14219255ccd
1513468e766
hexba539b4d

3126041421 has 4 divisors (see below), whose sum is σ = 4168055232. Its totient is φ = 2084027612.

The previous prime is 3126041417. The next prime is 3126041467. The reversal of 3126041421 is 1241406213.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1241406213 = 3413802071.

It is a cyclic number.

It is not a de Polignac number, because 3126041421 - 22 = 3126041417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3126041391 and 3126041400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3126041621) 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, 521006901 + ... + 521006906.

It is an arithmetic number, because the mean of its divisors is an integer number (1042013808).

Almost surely, 23126041421 is an apocalyptic number.

It is an amenable number.

3126041421 is a deficient number, since it is larger than the sum of its proper divisors (1042013811).

3126041421 is a wasteful number, since it uses less digits than its factorization.

3126041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042013810.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3126041421 is about 55911.0134141745. The cubic root of 3126041421 is about 1462.1712581876.

Adding to 3126041421 its reverse (1241406213), we get a palindrome (4367447634).

The spelling of 3126041421 in words is "three billion, one hundred twenty-six million, forty-one thousand, four hundred twenty-one".

Divisors: 1 3 1042013807 3126041421