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1381418048 = 2621584657
BaseRepresentation
bin101001001010110…
…1100010001000000
310120021101022022102
41102111230101000
510312120334143
6345024325532
746142600603
oct12225542100
93507338272
101381418048
1164985790a
123267738a8
1319027393a
14d167633a
15814240b8
hex5256c440

1381418048 has 14 divisors (see below), whose sum is σ = 2741251566. Its totient is φ = 690708992.

The previous prime is 1381418041. The next prime is 1381418069. The reversal of 1381418048 is 8408141831.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1129497664 + 251920384 = 33608^2 + 15872^2 .

It is not an unprimeable number, because it can be changed into a prime (1381418041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10792265 + ... + 10792392.

Almost surely, 21381418048 is an apocalyptic number.

It is an amenable number.

1381418048 is a deficient number, since it is larger than the sum of its proper divisors (1359833518).

1381418048 is an equidigital number, since it uses as much as digits as its factorization.

1381418048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21584669 (or 21584659 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 1381418048 is about 37167.4326258890. The cubic root of 1381418048 is about 1113.7174950069.

Adding to 1381418048 its reverse (8408141831), we get a palindrome (9789559879).

The spelling of 1381418048 in words is "one billion, three hundred eighty-one million, four hundred eighteen thousand, forty-eight".

Divisors: 1 2 4 8 16 32 64 21584657 43169314 86338628 172677256 345354512 690709024 1381418048