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5106421 = 19268759
BaseRepresentation
bin10011011110101011110101
3100121102200201
4103132223311
52301401141
6301240501
761255345
oct23365365
910542621
105106421
112978591
121863131
13109a368
1496cd25
156ad031
hex4deaf5

5106421 has 4 divisors (see below), whose sum is σ = 5375200. Its totient is φ = 4837644.

The previous prime is 5106419. The next prime is 5106433. The reversal of 5106421 is 1246015.

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 5106421 - 21 = 5106419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 268759 = 5106421 / (5 + 1 + 0 + 6 + 4 + 2 + 1).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5106821) 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, 134361 + ... + 134398.

It is an arithmetic number, because the mean of its divisors is an integer number (1343800).

Almost surely, 25106421 is an apocalyptic number.

It is an amenable number.

5106421 is a deficient number, since it is larger than the sum of its proper divisors (268779).

5106421 is a wasteful number, since it uses less digits than its factorization.

5106421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268778.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 5106421 is about 2259.7391442377. The cubic root of 5106421 is about 172.2022701517.

The spelling of 5106421 in words is "five million, one hundred six thousand, four hundred twenty-one".

Divisors: 1 19 268759 5106421