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1380083434 = 2690041717
BaseRepresentation
bin101001001000010…
…0110011011101010
310120011212111120021
41102100212123222
510311300132214
6344535551054
746125341602
oct12220463352
93504774507
101380083434
11649026124
1232622b48a
1318cbc7322
14d1409c02
158125d924
hex524266ea

1380083434 has 4 divisors (see below), whose sum is σ = 2070125154. Its totient is φ = 690041716.

The previous prime is 1380083381. The next prime is 1380083479. The reversal of 1380083434 is 4343800831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4343800831 = 21372032663.

It can be written as a sum of positive squares in only one way, i.e., 1005080209 + 375003225 = 31703^2 + 19365^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1380083434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345020857 + ... + 345020860.

Almost surely, 21380083434 is an apocalyptic number.

1380083434 is a deficient number, since it is larger than the sum of its proper divisors (690041720).

1380083434 is an equidigital number, since it uses as much as digits as its factorization.

1380083434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690041719.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1380083434 is about 37149.4742089306. The cubic root of 1380083434 is about 1113.3587182908.

The spelling of 1380083434 in words is "one billion, three hundred eighty million, eighty-three thousand, four hundred thirty-four".

Divisors: 1 2 690041717 1380083434