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3405423541 = 13261955657
BaseRepresentation
bin1100101011111010…
…1010001110110101
322210022220102212211
43022332222032311
523433242023131
61321530013421
7150250423342
oct31276521665
98708812784
103405423541
111498300123
127b0577271
134236a4620
142443bd7c9
1514de795b1
hexcafaa3b5

3405423541 has 4 divisors (see below), whose sum is σ = 3667379212. Its totient is φ = 3143467872.

The previous prime is 3405423529. The next prime is 3405423557. The reversal of 3405423541 is 1453245043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1453245043 = 6203234281.

It can be written as a sum of positive squares in 2 ways, for example, as 2251122916 + 1154300625 = 47446^2 + 33975^2 .

It is a cyclic number.

It is not a de Polignac number, because 3405423541 - 25 = 3405423509 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 (3405423641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130977816 + ... + 130977841.

It is an arithmetic number, because the mean of its divisors is an integer number (916844803).

Almost surely, 23405423541 is an apocalyptic number.

It is an amenable number.

3405423541 is a deficient number, since it is larger than the sum of its proper divisors (261955671).

3405423541 is a wasteful number, since it uses less digits than its factorization.

3405423541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261955670.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 3405423541 is about 58356.0068973195. The cubic root of 3405423541 is about 1504.4937154964.

Adding to 3405423541 its reverse (1453245043), we get a palindrome (4858668584).

The spelling of 3405423541 in words is "three billion, four hundred five million, four hundred twenty-three thousand, five hundred forty-one".

Divisors: 1 13 261955657 3405423541