Search a number
-
+
20377441 = 7171091571
BaseRepresentation
bin100110110111…
…0111101100001
31102100021121001
41031232331201
520204034231
62004432001
7335130310
oct115567541
942307531
1020377441
1110558967
1269a8601
1342b6176
1429c6277
151bc7b61
hex136ef61

20377441 has 16 divisors (see below), whose sum is σ = 24900480. Its totient is φ = 16277760.

The previous prime is 20377433. The next prime is 20377453. The reversal of 20377441 is 14477302.

It is a cyclic number.

It is not a de Polignac number, because 20377441 - 23 = 20377433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20377411) 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, 12186 + ... + 13756.

It is an arithmetic number, because the mean of its divisors is an integer number (1556280).

Almost surely, 220377441 is an apocalyptic number.

It is an amenable number.

20377441 is a deficient number, since it is larger than the sum of its proper divisors (4523039).

20377441 is a wasteful number, since it uses less digits than its factorization.

20377441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 20377441 is about 4514.1379021913. The cubic root of 20377441 is about 273.1386853663.

The spelling of 20377441 in words is "twenty million, three hundred seventy-seven thousand, four hundred forty-one".

Divisors: 1 7 17 109 119 763 1571 1853 10997 12971 26707 171239 186949 1198673 2911063 20377441