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7389438082 = 213284209157
BaseRepresentation
bin1101110000111000…
…11110000010000010
3201001222112100101221
412320130132002002
5110113144004312
63221125145254
7351055121155
oct67034360202
921058470357
107389438082
113152166224
12152285b22a
13909bb9c90
14501571c9c
152d3ae3207
hex1b871e082

7389438082 has 8 divisors (see below), whose sum is σ = 11936784636. Its totient is φ = 3410509872.

The previous prime is 7389438079. The next prime is 7389438097. The reversal of 7389438082 is 2808349837.

It can be written as a sum of positive squares in 2 ways, for example, as 7192905721 + 196532361 = 84811^2 + 14019^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142104553 + ... + 142104604.

Almost surely, 27389438082 is an apocalyptic number.

7389438082 is a deficient number, since it is larger than the sum of its proper divisors (4547346554).

7389438082 is a wasteful number, since it uses less digits than its factorization.

7389438082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284209172.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 7389438082 is about 85961.8408481345. The cubic root of 7389438082 is about 1947.7676036910.

The spelling of 7389438082 in words is "seven billion, three hundred eighty-nine million, four hundred thirty-eight thousand, eighty-two".

Divisors: 1 2 13 26 284209157 568418314 3694719041 7389438082