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1440466013 = 7792604821
BaseRepresentation
bin101010111011011…
…1100010001011101
310201101111020220002
41111312330101131
510422224403023
6354534104045
750460521240
oct12566742135
93641436802
101440466013
1167a118488
123424ab025
1319c57946c
14d9447257
15866d9b28
hex55dbc45d

1440466013 has 8 divisors (see below), whose sum is σ = 1667086080. Its totient is φ = 1219055760.

The previous prime is 1440466007. The next prime is 1440466033. The reversal of 1440466013 is 3106640441.

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

It is a cyclic number.

It is not a de Polignac number, because 1440466013 - 220 = 1439417437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440466033) 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, 1301858 + ... + 1302963.

It is an arithmetic number, because the mean of its divisors is an integer number (208385760).

Almost surely, 21440466013 is an apocalyptic number.

It is an amenable number.

1440466013 is a deficient number, since it is larger than the sum of its proper divisors (226620067).

1440466013 is an equidigital number, since it uses as much as digits as its factorization.

1440466013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604907.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1440466013 is about 37953.4716857365. The cubic root of 1440466013 is about 1129.3650368031.

The spelling of 1440466013 in words is "one billion, four hundred forty million, four hundred sixty-six thousand, thirteen".

Divisors: 1 7 79 553 2604821 18233747 205780859 1440466013