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24315421 = 131998443
BaseRepresentation
bin101110011000…
…0011000011101
31200202100111011
41130300120131
522211043141
62225055221
7413451304
oct134603035
950670434
1024315421
11127a8599
128187511
135064730
14332d43b
152204881
hex173061d

24315421 has 8 divisors (see below), whose sum is σ = 27564320. Its totient is φ = 21263472.

The previous prime is 24315413. The next prime is 24315433. The reversal of 24315421 is 12451342.

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

It is a cyclic number.

It is not a de Polignac number, because 24315421 - 23 = 24315413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24315392 and 24315401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24315451) 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, 48975 + ... + 49468.

It is an arithmetic number, because the mean of its divisors is an integer number (3445540).

Almost surely, 224315421 is an apocalyptic number.

It is an amenable number.

24315421 is a deficient number, since it is larger than the sum of its proper divisors (3248899).

24315421 is a wasteful number, since it uses less digits than its factorization.

24315421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98475.

The product of its digits is 960, while the sum is 22.

The square root of 24315421 is about 4931.0669230908. The cubic root of 24315421 is about 289.7080732557.

Adding to 24315421 its reverse (12451342), we get a palindrome (36766763).

The spelling of 24315421 in words is "twenty-four million, three hundred fifteen thousand, four hundred twenty-one".

Divisors: 1 13 19 247 98443 1279759 1870417 24315421