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1440112323 = 31336925957
BaseRepresentation
bin101010111010110…
…0101111011000011
310201100211021201110
41111311211323003
510422132043243
6354522334403
750454516126
oct12565457303
93640737643
101440112323
116799a6781
1234235a403
1319c484490
14d93943bd
1586669e33
hex55d65ec3

1440112323 has 8 divisors (see below), whose sum is σ = 2067853648. Its totient is φ = 886222944.

The previous prime is 1440112301. The next prime is 1440112337. The reversal of 1440112323 is 3232110441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1440112323 - 26 = 1440112259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440112323.

It is not an unprimeable number, because it can be changed into a prime (1440112393) 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, 18462940 + ... + 18463017.

It is an arithmetic number, because the mean of its divisors is an integer number (258481706).

Almost surely, 21440112323 is an apocalyptic number.

1440112323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1440112323 is a deficient number, since it is larger than the sum of its proper divisors (627741325).

1440112323 is a wasteful number, since it uses less digits than its factorization.

1440112323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36925973.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1440112323 is about 37948.8118786346. The cubic root of 1440112323 is about 1129.2725950022.

Adding to 1440112323 its reverse (3232110441), we get a palindrome (4672222764).

The spelling of 1440112323 in words is "one billion, four hundred forty million, one hundred twelve thousand, three hundred twenty-three".

Divisors: 1 3 13 39 36925957 110777871 480037441 1440112323