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1440101412 = 223282748371
BaseRepresentation
bin101010111010110…
…0011010000100100
310201100210201202100
41111311203100210
510422131221122
6354522212100
750454442251
oct12565432044
93640721670
101440101412
11679999562
12342354030
1319c47c519
14d9390428
1586666aac
hex55d63424

1440101412 has 36 divisors (see below), whose sum is σ = 3644733456. Its totient is φ = 479443440.

The previous prime is 1440101389. The next prime is 1440101413. The reversal of 1440101412 is 2141010441.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1440101413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5587 + ... + 53957.

It is an arithmetic number, because the mean of its divisors is an integer number (101242596).

Almost surely, 21440101412 is an apocalyptic number.

1440101412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1440101412 is an abundant number, since it is smaller than the sum of its proper divisors (2204632044).

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

1440101412 is a wasteful number, since it uses less digits than its factorization.

1440101412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49208 (or 49203 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1440101412 is about 37948.6681189209. The cubic root of 1440101412 is about 1129.2697430199.

Adding to 1440101412 its reverse (2141010441), we get a palindrome (3581111853).

The spelling of 1440101412 in words is "one billion, four hundred forty million, one hundred one thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 827 1654 2481 3308 4962 7443 9924 14886 29772 48371 96742 145113 193484 290226 435339 580452 870678 1741356 40002817 80005634 120008451 160011268 240016902 360025353 480033804 720050706 1440101412