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1441144940 = 225163442069
BaseRepresentation
bin101010111100110…
…0010000001101100
310201102202202012112
41111321202001230
510422413114230
6355000423152
750466346514
oct12571420154
93642682175
101441144940
1167a541584
12342777ab8
1319c7564b1
14d9582844
15867c0d95
hex55e6206c

1441144940 has 24 divisors (see below), whose sum is σ = 3044978160. Its totient is φ = 572920128.

The previous prime is 1441144921. The next prime is 1441144949. The reversal of 1441144940 is 494411441.

It is a junction number, because it is equal to n+sod(n) for n = 1441144897 and 1441144906.

It is not an unprimeable number, because it can be changed into a prime (1441144949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217775 + ... + 224294.

It is an arithmetic number, because the mean of its divisors is an integer number (126874090).

Almost surely, 21441144940 is an apocalyptic number.

1441144940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1441144940 is an abundant number, since it is smaller than the sum of its proper divisors (1603833220).

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

1441144940 is a wasteful number, since it uses less digits than its factorization.

1441144940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442241 (or 442239 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1441144940 is about 37962.4148336220. The cubic root of 1441144940 is about 1129.5424414248.

The spelling of 1441144940 in words is "one billion, four hundred forty-one million, one hundred forty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 163 326 652 815 1630 3260 442069 884138 1768276 2210345 4420690 8841380 72057247 144114494 288228988 360286235 720572470 1441144940