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1384723983 = 3724363727
BaseRepresentation
bin101001010001001…
…0011011000001111
310120111121021012110
41102202103120033
510313442131413
6345223235103
746212650106
oct12242233017
93514537173
101384723983
11650705695
123278a8a93
13190b60606
14d1c9703d
15818788c3
hex5289360f

1384723983 has 8 divisors (see below), whose sum is σ = 1846582528. Its totient is φ = 923007384.

The previous prime is 1384723981. The next prime is 1384723997. The reversal of 1384723983 is 3893274831.

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

It is not a de Polignac number, because 1384723983 - 21 = 1384723981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384723981) 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, 10135 + ... + 53592.

It is an arithmetic number, because the mean of its divisors is an integer number (230822816).

Almost surely, 21384723983 is an apocalyptic number.

1384723983 is a deficient number, since it is larger than the sum of its proper divisors (461858545).

1384723983 is an equidigital number, since it uses as much as digits as its factorization.

1384723983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70973.

The product of its digits is 870912, while the sum is 48.

The square root of 1384723983 is about 37211.8795950970. The cubic root of 1384723983 is about 1114.6052167362.

The spelling of 1384723983 in words is "one billion, three hundred eighty-four million, seven hundred twenty-three thousand, nine hundred eighty-three".

Divisors: 1 3 7243 21729 63727 191181 461574661 1384723983