Search a number
-
+
1441405220 = 225379190159
BaseRepresentation
bin101010111101010…
…0001100100100100
310201110020222020112
41111322201210210
510422444431340
6355010152152
750501512403
oct12572414444
93643228215
101441405220
1167a6aa092
12342882658
1319c817ac8
14d960d63a
1586823065
hex55ea1924

1441405220 has 24 divisors (see below), whose sum is σ = 3034953600. Its totient is φ = 575037792.

The previous prime is 1441405213. The next prime is 1441405261. The reversal of 1441405220 is 225041441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87500 + ... + 102659.

It is an arithmetic number, because the mean of its divisors is an integer number (126456400).

Almost surely, 21441405220 is an apocalyptic number.

1441405220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1441405220 is an abundant number, since it is smaller than the sum of its proper divisors (1593548380).

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

1441405220 is a wasteful number, since it uses less digits than its factorization.

1441405220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190547 (or 190545 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1441405220 is about 37965.8428063964. The cubic root of 1441405220 is about 1129.6104381962.

Adding to 1441405220 its reverse (225041441), we get a palindrome (1666446661).

The spelling of 1441405220 in words is "one billion, four hundred forty-one million, four hundred five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 379 758 1516 1895 3790 7580 190159 380318 760636 950795 1901590 3803180 72070261 144140522 288281044 360351305 720702610 1441405220