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1380373448 = 23172546681
BaseRepresentation
bin101001001000110…
…1101001111001000
310120012102020101112
41102101231033020
510311333422243
6344550105452
746130660246
oct12221551710
93505366345
101380373448
11649204003
1232634b288
1318cc9932c
14d1483796
15812b9818
hex5246d3c8

1380373448 has 8 divisors (see below), whose sum is σ = 2588200230. Its totient is φ = 690186720.

The previous prime is 1380373447. The next prime is 1380373469. The reversal of 1380373448 is 8443730831.

It can be written as a sum of positive squares in only one way, i.e., 924038404 + 456335044 = 30398^2 + 21362^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1380373447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86273333 + ... + 86273348.

Almost surely, 21380373448 is an apocalyptic number.

It is an amenable number.

1380373448 is a deficient number, since it is larger than the sum of its proper divisors (1207826782).

1380373448 is a wasteful number, since it uses less digits than its factorization.

1380373448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172546687 (or 172546683 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 1380373448 is about 37153.3773431165. The cubic root of 1380373448 is about 1113.4367007742.

The spelling of 1380373448 in words is "one billion, three hundred eighty million, three hundred seventy-three thousand, four hundred forty-eight".

Divisors: 1 2 4 8 172546681 345093362 690186724 1380373448