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1440101442 = 231322382793
BaseRepresentation
bin101010111010110…
…0011010001000010
310201100210201210110
41111311203101002
510422131221232
6354522212150
750454442323
oct12565432102
93640721713
101440101442
1167999958a
12342354056
1319c47c540
14d939044a
1586666acc
hex55d63442

1440101442 has 32 divisors (see below), whose sum is σ = 3115703808. Its totient is φ = 441115776.

The previous prime is 1440101437. The next prime is 1440101483. The reversal of 1440101442 is 2441010441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24003 + ... + 58790.

It is an arithmetic number, because the mean of its divisors is an integer number (97365744).

Almost surely, 21440101442 is an apocalyptic number.

1440101442 is an abundant number, since it is smaller than the sum of its proper divisors (1675602366).

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

1440101442 is a wasteful number, since it uses less digits than its factorization.

1440101442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83034.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1440101442 is about 37948.6685141916. The cubic root of 1440101442 is about 1129.2697508615.

Adding to 1440101442 its reverse (2441010441), we get a palindrome (3881111883).

The spelling of 1440101442 in words is "one billion, four hundred forty million, one hundred one thousand, four hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 223 446 669 1338 2899 5798 8697 17394 82793 165586 248379 496758 1076309 2152618 3228927 6457854 18462839 36925678 55388517 110777034 240016907 480033814 720050721 1440101442