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405124413 = 3135041471
BaseRepresentation
bin11000001001011…
…011010100111101
31001020022110012220
4120021123110331
51312202440123
6104111115553
713016333511
oct3011332475
91036273186
10405124413
11198755a71
12b3812bb9
1365c16bb5
143bb3a141
1525876ce3
hex1825b53d

405124413 has 4 divisors (see below), whose sum is σ = 540165888. Its totient is φ = 270082940.

The previous prime is 405124397. The next prime is 405124427. The reversal of 405124413 is 314421504.

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 405124413 - 24 = 405124397 is a prime.

It is a super-3 number, since 3×4051244133 (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405124453) 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, 67520733 + ... + 67520738.

It is an arithmetic number, because the mean of its divisors is an integer number (135041472).

Almost surely, 2405124413 is an apocalyptic number.

It is an amenable number.

405124413 is a deficient number, since it is larger than the sum of its proper divisors (135041475).

405124413 is a wasteful number, since it uses less digits than its factorization.

405124413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135041474.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 405124413 is about 20127.7026259829. The cubic root of 405124413 is about 739.9393747509.

Adding to 405124413 its reverse (314421504), we get a palindrome (719545917).

The spelling of 405124413 in words is "four hundred five million, one hundred twenty-four thousand, four hundred thirteen".

Divisors: 1 3 135041471 405124413