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10438506 = 23213311439
BaseRepresentation
bin100111110100…
…011101101010
3201122022221100
4213310131222
510133013011
61011422230
7154503651
oct47643552
921568840
1010438506
11598a671
1235b4976
132216340
14155a198
15db2d56
hex9f476a

10438506 has 48 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 3106080.

The previous prime is 10438501. The next prime is 10438517. The reversal of 10438506 is 60583401.

It is a self number, because there is not a number n which added to its sum of digits gives 10438506.

It is not an unprimeable number, because it can be changed into a prime (10438501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6535 + ... + 7973.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 210438506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10438506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12579840).

10438506 is an abundant number, since it is smaller than the sum of its proper divisors (14721174).

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

10438506 is a wasteful number, since it uses less digits than its factorization.

10438506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 10438506 is about 3230.8676853130. The cubic root of 10438506 is about 218.5476369629.

It can be divided in two parts, 10 and 438506, that added together give a triangular number (438516 = T936).

The spelling of 10438506 in words is "ten million, four hundred thirty-eight thousand, five hundred six".

Divisors: 1 2 3 6 9 13 18 26 31 39 62 78 93 117 186 234 279 403 558 806 1209 1439 2418 2878 3627 4317 7254 8634 12951 18707 25902 37414 44609 56121 89218 112242 133827 168363 267654 336726 401481 579917 802962 1159834 1739751 3479502 5219253 10438506