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1440105132 = 223208757503
BaseRepresentation
bin101010111010110…
…0100001010101100
310201100210220212010
41111311210022230
510422131331012
6354522241220
750454456144
oct12565441254
93640726763
101440105132
116799a1334
12342356210
1319c48111b
14d9391924
1586667c3c
hex55d642ac

1440105132 has 24 divisors (see below), whose sum is σ = 3361913856. Its totient is φ = 479796688.

The previous prime is 1440105101. The next prime is 1440105151. The reversal of 1440105132 is 2315010441.

It is a junction number, because it is equal to n+sod(n) for n = 1440105099 and 1440105108.

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, 3708 + ... + 53795.

It is an arithmetic number, because the mean of its divisors is an integer number (140079744).

Almost surely, 21440105132 is an apocalyptic number.

1440105132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1440105132 is an abundant number, since it is smaller than the sum of its proper divisors (1921808724).

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

1440105132 is a wasteful number, since it uses less digits than its factorization.

1440105132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59597 (or 59595 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1440105132 is about 37948.7171324671. The cubic root of 1440105132 is about 1129.2707153773.

Adding to 1440105132 its reverse (2315010441), we get a palindrome (3755115573).

The spelling of 1440105132 in words is "one billion, four hundred forty million, one hundred five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 2087 4174 6261 8348 12522 25044 57503 115006 172509 230012 345018 690036 120008761 240017522 360026283 480035044 720052566 1440105132