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20234879 = 717971753
BaseRepresentation
bin100110100110…
…0001001111111
31102002001000222
41031030021333
520140004004
62001411555
7333664550
oct115141177
942061028
1020234879
1110470845
126939bbb
134266302
14298a327
151b9a7be
hex134c27f

20234879 has 16 divisors (see below), whose sum is σ = 24752448. Its totient is φ = 16146432.

The previous prime is 20234849. The next prime is 20234881. The reversal of 20234879 is 97843202.

It is a cyclic number.

It is not a de Polignac number, because 20234879 - 28 = 20234623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10667 + ... + 12419.

It is an arithmetic number, because the mean of its divisors is an integer number (1547028).

Almost surely, 220234879 is an apocalyptic number.

20234879 is a deficient number, since it is larger than the sum of its proper divisors (4517569).

20234879 is a wasteful number, since it uses less digits than its factorization.

20234879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 20234879 is about 4498.3195751303. The cubic root of 20234879 is about 272.5002283756.

The spelling of 20234879 in words is "twenty million, two hundred thirty-four thousand, eight hundred seventy-nine".

Divisors: 1 7 17 97 119 679 1649 1753 11543 12271 29801 170041 208607 1190287 2890697 20234879