Search a number
-
+
13828450 = 2521931433
BaseRepresentation
bin110100110000…
…000101100010
3222000120001211
4310300011202
512020002300
61212220334
7225353116
oct64600542
928016054
1013828450
117895579
12476a6aa
132b3231c
141b9d746
1513324ba
hexd30162

13828450 has 24 divisors (see below), whose sum is σ = 25872228. Its totient is φ = 5498880.

The previous prime is 13828411. The next prime is 13828459. The reversal of 13828450 is 5482831.

It can be written as a sum of positive squares in 6 ways, for example, as 5574321 + 8254129 = 2361^2 + 2873^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13828459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8934 + ... + 10366.

Almost surely, 213828450 is an apocalyptic number.

13828450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13828450 is a deficient number, since it is larger than the sum of its proper divisors (12043778).

13828450 is a wasteful number, since it uses less digits than its factorization.

13828450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 13828450 is about 3718.6623939261. The cubic root of 13828450 is about 240.0257495521.

The spelling of 13828450 in words is "thirteen million, eight hundred twenty-eight thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 193 386 965 1433 1930 2866 4825 7165 9650 14330 35825 71650 276569 553138 1382845 2765690 6914225 13828450