Search a number
-
+
21483852 = 22313178101
BaseRepresentation
bin101000111110…
…1000101001100
31111102111022020
41101331011030
520444440402
62044250140
7350416065
oct121750514
944374266
1021483852
1111144155
127240950
1345b2950
142bd356c
151d458bc
hex147d14c

21483852 has 48 divisors (see below), whose sum is σ = 57167712. Its totient is φ = 6220800.

The previous prime is 21483829. The next prime is 21483853. The reversal of 21483852 is 25838412.

It is not an unprimeable number, because it can be changed into a prime (21483853) 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, 1399 + ... + 6702.

It is an arithmetic number, because the mean of its divisors is an integer number (1190994).

Almost surely, 221483852 is an apocalyptic number.

It is an amenable number.

21483852 is an abundant number, since it is smaller than the sum of its proper divisors (35683860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21483852 is a wasteful number, since it uses less digits than its factorization.

21483852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8138 (or 8136 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 21483852 is about 4635.0676370470. The cubic root of 21483852 is about 277.9952555131.

The spelling of 21483852 in words is "twenty-one million, four hundred eighty-three thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 442 663 884 1326 2652 8101 16202 24303 32404 48606 97212 105313 137717 210626 275434 315939 413151 421252 550868 631878 826302 1263756 1652604 1790321 3580642 5370963 7161284 10741926 21483852