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1379429818 = 213521101833
BaseRepresentation
bin101001000111000…
…0110110110111010
310120010122021222021
41102032012312322
510311113223233
6344513545054
746116650164
oct12216066672
93503567867
101379429818
1164871a048
12325b7518a
1318ca28980
14d12b9934
158117ee2d
hex52386dba

1379429818 has 16 divisors (see below), whose sum is σ = 2232608616. Its totient is φ = 635431680.

The previous prime is 1379429729. The next prime is 1379429879. The reversal of 1379429818 is 8189249731.

It can be written as a sum of positive squares in 4 ways, for example, as 1042450369 + 336979449 = 32287^2 + 18357^2 .

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, 37371 + ... + 64462.

Almost surely, 21379429818 is an apocalyptic number.

1379429818 is a deficient number, since it is larger than the sum of its proper divisors (853178798).

1379429818 is a wasteful number, since it uses less digits than its factorization.

1379429818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102369.

The product of its digits is 870912, while the sum is 52.

The square root of 1379429818 is about 37140.6760573902. The cubic root of 1379429818 is about 1113.1829260243.

The spelling of 1379429818 in words is "one billion, three hundred seventy-nine million, four hundred twenty-nine thousand, eight hundred eighteen".

Divisors: 1 2 13 26 521 1042 6773 13546 101833 203666 1323829 2647658 53054993 106109986 689714909 1379429818