Search a number
-
+
26144020 = 2257186743
BaseRepresentation
bin110001110111…
…0110100010100
31211012020212001
41203232310110
523143102040
62332205044
7435135430
oct143566424
954166761
1026144020
1113837431
128909784
135554b46
1436879c0
15246659a
hex18eed14

26144020 has 24 divisors (see below), whose sum is σ = 62745984. Its totient is φ = 8963616.

The previous prime is 26144009. The next prime is 26144033. The reversal of 26144020 is 2044162.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93232 + ... + 93511.

It is an arithmetic number, because the mean of its divisors is an integer number (2614416).

Almost surely, 226144020 is an apocalyptic number.

26144020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26144020 is an abundant number, since it is smaller than the sum of its proper divisors (36601964).

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

26144020 is a wasteful number, since it uses less digits than its factorization.

26144020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186759 (or 186757 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 26144020 is about 5113.1223337605. The cubic root of 26144020 is about 296.7955982666.

Adding to 26144020 its reverse (2044162), we get a palindrome (28188182).

The spelling of 26144020 in words is "twenty-six million, one hundred forty-four thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 186743 373486 746972 933715 1307201 1867430 2614402 3734860 5228804 6536005 13072010 26144020