Search a number
-
+
20410554 = 233401759
BaseRepresentation
bin100110111011…
…1000010111010
31102101222000110
41031313002322
520211114204
62005245150
7335325663
oct115670272
942358013
1020410554
111058082a
126a037b6
1342c8268
1429d436a
151bd2889
hex13770ba

20410554 has 8 divisors (see below), whose sum is σ = 40821120. Its totient is φ = 6803516.

The previous prime is 20410553. The next prime is 20410589. The reversal of 20410554 is 45501402.

It is a sphenic number, since it is the product of 3 distinct primes.

20410554 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20410554.

It is not an unprimeable number, because it can be changed into a prime (20410553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700874 + ... + 1700885.

It is an arithmetic number, because the mean of its divisors is an integer number (5102640).

Almost surely, 220410554 is an apocalyptic number.

20410554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20410554 is a wasteful number, since it uses less digits than its factorization.

20410554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401764.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20410554 is about 4517.8041126193. The cubic root of 20410554 is about 273.2865538954.

Adding to 20410554 its reverse (45501402), we get a palindrome (65911956).

The spelling of 20410554 in words is "twenty million, four hundred ten thousand, five hundred fifty-four".

Divisors: 1 2 3 6 3401759 6803518 10205277 20410554