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1444076730 = 232517943841
BaseRepresentation
bin101011000010010…
…1101110010111010
310201122021200212100
41112010231302322
510424140423410
6355143324230
750533310145
oct12604556272
93648250770
101444076730
11681164248
12343750676
131a0241a95
14d9b0705c
1586b9e8c0
hex5612dcba

1444076730 has 48 divisors (see below), whose sum is σ = 3975462504. Its totient is φ = 362434560.

The previous prime is 1444076717. The next prime is 1444076761. The reversal of 1444076730 is 376704441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1125132849 + 318943881 = 33543^2 + 17859^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470391 + ... + 473450.

Almost surely, 21444076730 is an apocalyptic number.

1444076730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1444076730 is an abundant number, since it is smaller than the sum of its proper divisors (2531385774).

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

1444076730 is a wasteful number, since it uses less digits than its factorization.

1444076730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943871 (or 943868 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 1444076730 is about 38001.0095918516. The cubic root of 1444076730 is about 1130.3078833178.

The spelling of 1444076730 in words is "one billion, four hundred forty-four million, seventy-six thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 943841 1887682 2831523 4719205 5663046 8494569 9438410 14157615 16045297 16989138 28315230 32090594 42472845 48135891 80226485 84945690 96271782 144407673 160452970 240679455 288815346 481358910 722038365 1444076730