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424103421 = 3720195401
BaseRepresentation
bin11001010001110…
…100110111111101
31002120000200112010
4121101310313331
51332032302141
6110030001433
713336551060
oct3121646775
91076020463
10424103421
111a84391a5
12ba046279
1369b30691
144047a8d7
1527375416
hex19474dfd

424103421 has 8 divisors (see below), whose sum is σ = 646252864. Its totient is φ = 242344800.

The previous prime is 424103401. The next prime is 424103429. The reversal of 424103421 is 124301424.

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

It is not a de Polignac number, because 424103421 - 221 = 422006269 is a prime.

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: 20195401 = 424103421 / (4 + 2 + 4 + 1 + 0 + 3 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424103429) 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, 10097680 + ... + 10097721.

It is an arithmetic number, because the mean of its divisors is an integer number (80781608).

Almost surely, 2424103421 is an apocalyptic number.

It is an amenable number.

424103421 is a deficient number, since it is larger than the sum of its proper divisors (222149443).

424103421 is a wasteful number, since it uses less digits than its factorization.

424103421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20195411.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 424103421 is about 20593.7714127355. The cubic root of 424103421 is about 751.3182274555.

Adding to 424103421 its reverse (124301424), we get a palindrome (548404845).

The spelling of 424103421 in words is "four hundred twenty-four million, one hundred three thousand, four hundred twenty-one".

Divisors: 1 3 7 21 20195401 60586203 141367807 424103421